The Global Invasive Species Initiative (ISI)
 
 
(Note: It is of paramount importance to realize that this entire premise is false and that the websites' addresses/URLs show The Nature Conservancy's view of these "invasive species" to be "weeds" -- i.e., http://tncweeds.ucdavis.edu/index.html -- which is what any nuisance specie is: noxious, a weed, harmful, etc. Using Language Deception to make people think that TNC is an authority on the following false phrases: "native species," "non-native species," "invasive species" -- is to gain control over people, either by causing them to not see the danger of losing their property rights through loss of ability to be responsible stewards over flora and fauna or by deception that opens checkbooks and bank accounts, and even estates, to donations to an organization that is perceived to be "saving" something like the "last great places." Owning or controlling many millions of acres is not "saving" them, any more than calling a plant or animal by a false description is "protecting" or "restoring" something else that is questionably at the very least, in actual need of "protecting" or "restoring." TNC's "management" would be hard pressed to prove that it farms, ranches, logs, mines, etc., any better than other private property owners. It has already been investigated by a major newspaper and a Congressional committee, has had its tax-free status yanked in one state [later returned] and operated for years in another [Ohio] and has broken assurances to elderly donors that it would "preserve" lands donated in good faith. Au contraire [on the contrary] -- more than one property has seen its land developed, resold, etc., not long after the donor's death. Other landowners have been threatened with condemnation of their land [Illinois]. The Nature Conservancy -- the "We are Nature's Realtor" group -- is not always the warm and fuzzy entity that it would have the public believe. The veneer is wearing thin. How much of the below will you believe? What is truth and what is fiction, employed solely to gain land, water, power, money, Control?)
 
 
The Global Invasive Species Initiative is The Nature Conservancy's response to abating the damage caused to native biodiversity by the human-facilitated introduction of non-native, harmful invasive species. This web site provides many resources designed to help all conservationists deal most effectively with invasive species.
 
 
The Nature Conservancy "Saving the last great places on earth"
 
 

 

The Management Library: Plants

 

Invasive plant documents & photographs

This page includes links to all our resources specific to individual invasive plant species. All of The Nature Conservancy's invasive plant species summaries can be downloaded here, including "Element Stewardship Abstracts" (or ESAs), which are particularly large, researched, and inclusive management summaries. Consider documents written prior to 1990 to be out of date---newer information is probably available. We also provide here shorter documents on invasive species.

For information on non-plant invaders, including pathogens, arthropods, vertebrates, etc., please refer to our invasives animal & pathogen page.

Didn't find what you were looking for? Try searching our listserve archives for information on the organism that interests you.

Are you an expert on a species not properly treated on our web site? (Perhaps our "ESA" for the species is dated or nonexistent?) Consider helping us all by following these instructions on how to contribute an ESA.

Unless otherwise indicated, the photographs on our site are copyrighted and property of the Wildland Invasive Species Team. If you would like to use some of our images, look at our usage policies on the page that houses our inventory of photographs.

Note our disclaimer regarding lists of species resources on our web site.
 
http://tncweeds.ucdavis.edu/esadocs.html

 
Species    Description/Photographer
Abrus precatorius    Leaves/photo MT
Abrus precatorius    Climbing a tree I/photo MT
Abrus precatorius    Climbing a tree II/photo MT
Abrus precatorius    Climbing a tree III/photo MT
Abutilon theophrasti    Lots of plants!/photo JMR
Acacia mearnsii    A young invader/photo JMR
Acer platanoides    Milky sap/photo JMR
Acer platanoides    Leaf, feigning innocence/photo JMR
Acer platanoides    Branch/photo JMR
Acer pseudoplatanus    Leaves, see them plot/photo JMR
Acroptilon repens    A young flower/photo JMR
Acroptilon repens    A seedhead/photo JMR
Acroptilon repens    Conniving foliage/photo JMR
Acroptilon repens    Old dead stuff/photo JMR
Acroptilon repens    Harrassing a tree/photo JMR
Acroptilon repens    Excluding all else/photo JMR
Acroptilon repens    Nasty infestation/photo JMR
Acroptilon repens    Floral close-up/photo JMR
Acroptilon repens    More dead stuff/photo JMR
Acroptilon repens    Nice flower/photo JMR
Acroptilon repens    Dessicating/photo JMR
Aegilops triuncialis    Seedheads/photo JMR
Aegilops triuncialis    Spikelets/photo BAR
Aegilops triuncialis    Invading serpentine/photo BAR
Aegilops triuncialis    More invasions/photo BAR
Aegilops triuncialis    Sprouts/photo JMR
Aegopodium podagraria    Glossy leaves/photo JMR
Aegopodium podagraria    Taking over!/photo JMR
Ageratina adenophora    On a road/photo JMR
Ageratina adenophora    On a hill/photo JMR
Ageratina adenophora    Flowers/photo JMR
Ageratina adenophora    Single plant/photo MT
Ageratina adenophora    Flock of plants/photo MT
Ageratina adenophora    Flowers? For me?/photo MT
Ageratina adenophora    Flowers gone by/photo MT
Ageratina adenophora    Weedy patch/photo MT
Ageratina adenophora    Runners/photo MT
Ageratina adenophora    Closeup of flowers/photo JMR
Ageratina adenophora    Flowers side view/photo JMR
Agropyron cristatum    Seedheads/photo JMR
Agropyron cristatum    Closer shot of a seedhead/photo JMR
Agropyron desertorum    Ominous seedhead/photo JMR
Agrostis capillaris    It's dead!/photo JMR
Agrostis capillaris    It's alive!/photo JMR
Agrostis stolonifera    Inflorescence/photo BAR
Agrostis stolonifera    Leaves/photo BAR
Ailanthus altissima    Characteristic leaf scars/photo JMR
Ailanthus altissima    A nasty young plant/photo JMR
Ailanthus altissima    Annoying roadside plants/photo JMR
Ailanthus altissima    A few bad trees/photo JMR
Ailanthus altissima    Smelly, nasty flowers/photo JMR
Ailanthus altissima    More flowers/photo JMR
Ailanthus altissima    Blighted plants/photo JMR
Ailanthus altissima    Bold tree/photo JMR
Ailanthus altissima    Audacious tree/photo JMR
Ailanthus altissima    A grove/photo JMR
Ailanthus altissima    Disoriented scientists/photo JMR
Ailanthus altissima    Thickets galore/photo JMR
Ailanthus altissima    Note leaf base gland/photo JMR
Ailanthus altissima    Native at China's Great Wall/photo JMR
Albizia julibrissin    Making seed pods/photo BAR
Albizia julibrissin    Seductively pretty leaves/photo BAR
Alhagi maurorum    Thorns!/photo JMR
Alhagi maurorum    Closeup of flowers/photo JMR
Alhagi maurorum    Many plants with flowers/photo JMR
Alhagi maurorum    Closeup of stems/photo JMR
Alhagi maurorum    Fruit!/photo JMR
Alhagi maurorum    Another plant/photo JMR
Alliaria petiolata    An infestation/photo JMR
Alliaria petiolata    Fruit/photo JMR
Alliaria petiolata    Flowering plant/photo JMR
Alliaria petiolata    In a forest/photo JMR
Alliaria petiolata    Young plant/photo JMR
Alternanthera philoxeroides    In a canal/photo JMR
Alternanthera philoxeroides    Where's the beach?/photo JMR
Alternanthera philoxeroides    Leafy menace/photo JMR
Alternanthera philoxeroides    Biocontrol damage, hurrah!/photo JMR
Amaranthus albus    Plant/photo JMR
Amaranthus albus    In a field/photo JMR
Ammophila arenaria    Flowers I/photo BAR
Ammophila arenaria    Flowers II/photo JMR
Ammophila arenaria    Flowers III/photo JMR
Ammophila arenaria    A bunch/photo JMR
Ammophila arenaria    On a dune/photo JMR
Ammophila arenaria    Topping a dune/photo JMR
Ammophila arenaria    Big bunch/photo JMR
Ammophila arenaria    New bunches/photo JMR
Ammophila arenaria    So many!/photo JMR
Ammophila arenaria    Dune/photo JMR
Ammophila arenaria    Bad weed!/photo JMR
Ammophila arenaria    Bad weed!!/photo JMR
Ammophila arenaria    Bad weed!!!/photo JMR
Ampelopsis brevipedunculata    A climbing hazard/photo JMR
Ampelopsis brevipedunculata    Heavy clump/photo JMR
Anchusa officinalis    Flowers I/photo MT
Anchusa officinalis    Flowers II/photo MT
Anchusa officinalis    Single plant/photo MT
Anchusa officinalis    Big clump!/photo MT
Andropogon gayanum    Plant/photo JMR
Andropogon gayanum    Inflorescence/photo JMR
Andropogon virginicus    Fruit/photo JMR
Andropogon virginicus    Plant/photo JMR
Andropogon virginicus    An infestation/photo JMR
Andropogon virginicus    A few plants/photo JMR
Andropogon virginicus    A big clump/photo JMR
Andropogon virginicus    A bad scene/photo JMR
Andropogon virginicus    Cliffside/photo JMR
Andropogon virginicus    On recent lava/photo JMR
Anredera cordifolia    Flowers on a vine/photo Joe DiTomaso(*)
Anthemis cotula    Flowers/photo JMR
Anthemis cotula    Infestation!/photo JMR
Anthemis cotula    Plants/photo JMR
Anthoxanthum odoratum    Spikelets I/photo JMR
Anthoxanthum odoratum    Spikelets II/photo JMR
Anthriscus caucalis    Young plant/photo JMR
Anthriscus caucalis    Fruit/photo JMR
Anthriscus caucalis    Infestation/photo JMR
Aptenia cordifolia    Dense growth/photo Jo Kitz(*)
Aptenia cordifolia    Flowers/photo Jo Kitz(*)
Aralia elata    Fruit/photo Marilyn Jordan(*)
Aralia elata    Sample leaf/photo Marilyn Jordan(*)
Aralia elata    Habit/photo Marilyn Jordan(*)
Aralia elata    Flowering tree/photo JMR
Aralia elata    Flowers/photo JMR
Aralia elata    Leaflets/photo JMR
Aralia elata    Tree/photo JMR
Aralia elata    Leaf/photo JMR
Arctium lappa    Bur-like flowers/photo JMR
Arctium lappa    Plantlet/photo JMR
Arctium minus    Flowering stalk/photo JMR
Arctium minus    Sessile flowers/photo JMR
Arctium minus    Rosette/photo JMR
Arctium minus    Streamside/photo JMR
Arctotheca calendula    Flowers/photo JMR
Arctotheca calendula    Single flower/photo JMR
Arctotheca calendula    Many plants/photo JMR
Arctotheca calendula    More plants/photo JMR
Arctotheca calendula    Yet more plants/photo JMR
Arctotheca calendula    Plant/photo JMR
Ardisia elliptica    Flowers I/photo JMR
Ardisia elliptica    Flowers II/photo JMR
Ardisia elliptica    Fruit/photo Pat Howell(*)
Arundo donax    It is big!/photo JMR
Arundo donax    By a slough/photo JMR
Arundo donax    Mountainside/photo JMR
Arundo donax    Arundo landscape/photo JMR
Arundo donax    Leaf sheaths/photo JMR
Arundo donax    Variegated weed!/photo BAR
Arundo donax    ...about to get lost!/photo JMR
Arundo donax    Along a river/photo JMR
Arundo donax    Inflorescence/photo JMR
Arundo donax    Flowering culm/photo JMR
Arundo donax    Flowering plants/photo JMR
Arundo donax    Landscape invasion/photo JMR
Arundo donax    Woody shoots!/photo MT
Arundo donax    Stalking Mandy/photo MT
Arundo donax    With scientists.../photo MT
Arundo donax    From above I/photo MT
Arundo donax    From above II/photo MT
Asparagus asparagoides    Leaves/photo JMR
Asparagus asparagoides    More leaves/photo JMR
Asparagus asparagoides    Leaves again/photo JMR
Asphodelus fistulosus    A few flowers/photo JMR
Asphodelus fistulosus    A bunch of plants/photo JMR
Asphodelus fistulosus    Flower and buds/photo JMR
Atriplex semibaccata    Plants/photo JMR
Atriplex semibaccata    Closeup from above/photo JMR
Atriplex semibaccata    Large plants/photo JMR
Atriplex semibaccata    About to be eaten by goats/photo JMR
Avena fatua    Raceme I/photo JMR
Avena fatua    Raceme II/photo JMR
Avena fatua    Spikelets/photo BAR
Avena fatua    Many plants/photo JMR
Avena fatua    Big field/photo JMR
Barbarea vulgaris    Big plant/photo JMR
Berberis spp.    Forest invasion, NJ/photo Joan Ehrenfeld(*)
Berberis spp.    New leaves, IL/photo JMR
Berberis spp.    3-tipped spines, CT/photo BAR
Berberis spp.    Red fruit, CT/photo BAR
Berberis spp.    Flowers, NY/photo JMR
Berberis spp.    Young leaves, MA/photo JMR
Berberis spp.    Immature fruit, MA/photo JMR
Berberis spp.    Plantlet, MA/photo JMR
Berberis spp.    One plant, MA/photo JMR
Berberis spp.    An invasion, MA/photo JMR
Berberis spp.    In cultivation, MA/photo JMR
Berteroa incana    Many plants/photo JMR
Berteroa incana    Large patch/photo JMR
Berteroa incana    Flowers/photo JMR
Bothriochloa ischaemum    Plant/photo JMR
Bothriochloa ischaemum    Inflorescence/photo JMR
Bothriochloa ischaemum    Invaded field/photo JMR
Brachypodium sylvaticum    Roadside/photo Thomas Kaye(*)
Brachypodium sylvaticum    Young leaves/photo Thomas Kaye(*)
Brachypodium sylvaticum    Small clump/photo Thomas Kaye(*)
Brachypodium sylvaticum    Seedy heads/photo Greg Fitzpatrick(*)
Brachypodium sylvaticum    Green patch/photo Greg Fitzpatrick(*)
Brachypodium sylvaticum    Pale green, on a road/photo Thomas Kaye(*)
Brassica nigra    In asphalt crack/photo JMR
Brassica tournefortii    Flowers/photo JMR
Brassica tournefortii    Flower detail/photo JMR
Brassica tournefortii    A few flowers/photo JMR
Brassica tournefortii    Plant in flower/photo JMR
Brassica spp.    Infestation/photo JMR
Brassica spp.    Patches/photo JMR
Brassica spp.    Flowers/photo JMR
Briza maxima    Fresh flowers/photo BAR
Briza maxima    Rattling fruit/photo BAR
Briza maxima    Spikelets close up/photo BAR
Briza maxima    Lots of flowers/photo JMR
Briza minor    Dangly flowers/photo BAR
Briza minor    Insideous spikelets/photo BAR
Bromus catharticus    Close-up of seedhead/photo BAR
Bromus diandrus    Close-up of seedhead/photo BAR
Bromus diandrus    Wind-tossed seedheads/photo JMR
Bromus hordeaceus    Close-up of seedhead/photo BAR
Bromus hordeaceus    Florets at anthesis/photo JMR
Bromus hordeaceus    More florets/photo JMR
Bromus inermis    Close-up of seedhead/photo JMR
Bromus inermis    Full view of panicle/photo JMR
Bromus inermis    The panicle later on/photo JMR
Bromus inermis    Impetuous anthers/photo JMR
Bromus japonicus    Dried flowers/photo JMR
Bromus madritensis subsp. rubens    A greenish seed head/photo JMR
Bromus madritensis subsp. rubens    A red seed head/photo JMR
Bromus madritensis subsp. rubens    Flower portrait/photo BAR
Bromus madritensis subsp. rubens    A bunch/photo JMR
Bromus madritensis subsp. rubens    Hedge/photo JMR
Bromus madritensis subsp. rubens    A landscape/photo JMR
Bromus tectorum    A plant making seed/photo JMR
Bromus tectorum    Brown field/photo JMR
Bromus tectorum    An infestation/photo JMR
Bromus tectorum    Hillside horror infestation/photo JMR
Bromus tectorum    Dangly fruit/photo JMR
Bromus tectorum    Weeds as far as the eye can see.../photo JMR
Bromus tectorum    Infesting sagebrush scrub/photo JMR
Bromus tectorum    Crowding out greasewood scrub/photo JMR
Broussonetia papyrifera    Invading tree/photo JMR
Buddleja davidii    Flowers/photo JMR
Buddleja davidii    Leaves/photo JMR
Butomus umbellatus    Flowers/photo JMR
Butomus umbellatus    Inflorescence I/photo JMR
Butomus umbellatus    Inflorescence II/photo MT
Butomus umbellatus    Streamside/photo MT
Butomus umbellatus    Dense patch/photo MT
Caragana arborescens    Plant close-up/photo JMR
Caragana arborescens    Branch/photo JMR
Caragana arborescens    Big patch/photo JMR
Cardaria chalapensis    Seductive flowers/photo JMR
Cardaria chalepensis    Bulging fruit/photo JMR
Cardaria chalepensis    Choked field/photo JMR
Cardaria draba    A young nasty beast/photo BAR
Cardaria draba    Wanton floral display/photo BAR
Cardaria draba    Roadside infestation/photo Jerry Asher(*)
Cardaria draba    Mature plant/photo JMR
Cardaria draba    Infested field/photo MT
Cardaria draba    Single plant/photo MT
Carduus nutans    Young flowerhead/photo JMR
Carduus nutans    Flowerhead I/photo JMR
Carduus nutans    Flowerhead II/photo JMR
Carduus nutans    Mature plant I/photo JMR
Carduus nutans    Mature plant II/photo JMR
Carduus nutans    At Grand Tetons/photo JMR
Carduus pycnocephalus    Flowers/photo JMR
Carduus pycnocephalus    A plant/photo JMR
Carica papaya    Small plant/photo JMR
Carica papaya    Leaves/photo JMR
Carica papaya    Flowers/photo JMR
Carpobrotus chilensis    Flower/photo BAR
Carpobrotus chilensis    Dune infestation/photo BAR
Carpobrotus edulis    Flower/photo BAR
Carpobrotus edulis    Landscape of weeds/photo JMR
Carpobrotus edulis    Patches of yellow native survivors/photo JMR
Carpobrotus sp.    Cliff edge at Big Sur/photo MT
Carpobrotus sp.    Red plants/photo MT
Carpobrotus sp.    More red plants/photo MT
Casuarina equisetifolia    A close-up of fruit/photo JMR
Casuarina equisetifolia    A close-up of a male catkin/photo JMR
Casuarina equisetifolia    In a grove of malevolent trees/photo JMR
Casuarina equisetifolia    On a hillside/photo JMR
Casuarina equisetifolia    Big big trees/photo Norma Jean Byrd(*)
Casuarina equisetifolia    Foul forest/photo Norma Jean Byrd(*)
Catalpa bignonioides    Leaves/photo JMR
Catalpa bignonioides    Fruit/photo JMR
Catalpa spp.    Landscape tree/photo JMR
Cayratia japonica    Bush/photo Nomura Masato(*)
Cayratia japonica    Reproduction/photo Nomura Masato(*)
Celastrus orbiculata    The plant/photo JMR
Celastrus orbiculata    Fruit/photo JMR
Celastrus orbiculata    Clambering/photo JMR
Celastrus orbiculata    Leaves/photo JMR
Celastrus orbiculata    Fruiting branches/photo JMR
Celastrus orbiculata    Blanketing natives/photo JMR
Celastrus orbiculata    Climbing a tree/photo JMR
Celastrus orbiculata    Draping a tree/photo JMR
Celastrus orbiculata    Red fruit/photo JMR
Cenchrus ciliaris    Plants/photo BAR (WYSIWYG--see note at bottom)
Cenchrus ciliaris    Flowers/photo BAR (WYSIWYG--see note at bottom)
Cenchrus ciliaris    Flowers II/photo BAR (WYSIWYG--see note at bottom)
Cenchrus ciliaris    Flowers III/photo BAR (WYSIWYG--see note at bottom)
Cenchrus ciliaris    Spikelets/photo JMR
Cenchrus ciliaris    Bunches/photo JMR
Cenchrus ciliaris    In Arizona/photo JMR
Cenchrus ciliaris    More in Arizona/photo JMR
Cenchrus ciliaris    In a wash/photo MT
Cenchrus ciliaris    A purplish bunch/photo MT
Cenchrus ciliaris    Bunches in sun/photo MT
Cenchrus ciliaris    Closer view/photo MT
 
Centaurea calcitrapa    Spiny plant!/photo BAR
Centaurea calcitrapa    Pokey flowers/photo BAR
Centaurea calcitrapa    Ooch! Ouch!/photo BAR
Centaurea calcitrapa    Pretty flowers/photo BAR
Centaurea cyanus    Bachelor button flowers/photo JMR
Centaurea cyanus    Flowers/photo BAR
Centaurea maculosa    Flower I/photo JMR
Centaurea maculosa    Flower II/photo JMR
Centaurea maculosa    Flower III/photo JMR
Centaurea maculosa    On a slope/photo MT
Centaurea maculosa    Dried spotty seedheads/photo BAR
Centaurea maculosa    Lots of seedheads/photo BAR
Centaurea maculosa    Young plant/photo JMR
Centaurea maculosa    Big plant/photo JMR
Centaurea maculosa    Bigger plant/photo JMR
Centaurea maculosa    Infestation I/photo JMR
Centaurea maculosa    Infestation II/photo JMR
Centaurea melitensis    wi/C. solstitialis/photo JMR
Centaurea melitensis    A flower/photo JMR
Centaurea melitensis    Two flowers/photo JMR
Centaurea pratensis    One flower/photo MT
Centaurea pratensis    More flowers/photo MT
Centaurea pratensis    Flowers in hand/photo MT
Centaurea pratensis    Many in bush/photo MT
Centaurea solstitialis    A young plant/photo JMR
Centaurea solstitialis    Spiny flower bud/photo JMR
Centaurea solstitialis    A large plant/photo JMR
Centaurea solstitialis    A mat of young plants/photo JMR
Centaurea solstitialis    A dreadful patch/photo JMR
Centaurea solstitialis    A seedy field/photo JMR
Centaurea solstitialis    A spiny flower/photo BAR
Centaurea solstitialis    Winged stems/photo BAR
Centaurea solstitialis    Branches/photo BAR
Centaurea solstitialis    Threatened by competition/photo by Jerry Asher(*)
Centaurea solstitialis    Q-tip stage/photo JMR
Centaurea solstitialis    Roadside/photo MT
Ceratonia siliqua    Mature stinky pods/photo BAR
Ceratonia siliqua    Flowers/photo BAR
Ceratonia siliqua    Young fruit/photo BAR
Ceratonia siliqua    Leaves/photo BAR
Chamelaucium uncinatum    Inflorescence/photo JMR
Chasmanthe floribunda    Inflorescence/photo JMR
Chasmanthe floribunda    Plants/photo JMR
Chenopodium album    Thick growth/photo JMR
Chondrilla juncea    In bunchgrass/photo Jerry Asher(*)
Chondrilla juncea    Impassible!/photo Jerry Asher(*)
Chondrilla juncea    Infestation/photo Jerry Asher(*)
Chondrilla juncea    Greenhouse study/photo JMR
Chrysophyllum oliviforme    Invading Hawai'i/photo JMR
Cichorium intybus    Flower I/photo BAR
Cichorium intybus    Flower II/photo JMR
Cirsium arvense    Flowerheads I/photo MT
Cirsium arvense    Flowerheads II/photo JMR
Cirsium arvense    Flowerheads III/photo JMR
Cirsium arvense    View of plant/photo JMR
Cirsium arvense    View of flowers/photo JMR
Cirsium arvense    Seedheads/photo JMR
Cirsium arvense    Sea of trouble/photo JMR
Cirsium arvense    Creekside/photo JMR
Cirsium arvense    Plants/photo JMR
Cirsium arvense    w/white foliage/photo BAR
Cirsium arvense    Male inflorescence/photo JMR
Cirsium arvense    Female inflorescence1/photo JMR
Cirsium arvense    Female inflorescence2/photo JMR
Cirsium arvense    Female inflorescence3/photo JMR
Cirsium vulgare    Many more plants/photo JMR
Cirsium vulgare    Weed in the mountains/photo JMR
Cirsium vulgare    Flowers/photo JMR
Cirsium vulgare    Making seed/photo JMR
Cirsium vulgare    Rosette of evil/photo BAR
Cirsium vulgare    White-flowered variant/photo JMR
Cirsium vulgare    Many prickly plants/photo JMR
Cirsium vulgare    Gone by thistles/photo JMR
Cirsium vulgare    Single flower/photo MT
Clerodendron sp.    A rare escapee/photo JMR
Clidemia hirta    Leaves and flowers/photo JMR
Clidemia hirta    Leaves/photo JMR
Clidemia hirta    Flowers/photo JMR
Clidemia hirta    Fruit/photo JMR
Coincya monensis    Evil rosette/photo Andrea Pickart(*)
Coincya monensis    Dune invader/photo Andrea Pickart(*)
Coincya monensis    Thick bunch/photo Andrea Pickart(*)
Coincya monensis    Beaked fruit/photo Andrea Pickart(*)
Coincya monensis    Flowers/photo Andrea Pickart(*)
Colubrina asiatica    Leaves/photo JMR
Colubrina asiatica    A bad infestation/photo JMR
Colubrina asiatica    Plants/photo JMR
Colubrina asiatica    One plant/photo MT
Colubrina asiatica    Fruit/photo MT
Colubrina asiatica    Flowers/photo MT
Complaya trilobata    Plants I/photo Norma Jean Byrd(*)
Complaya trilobata    Plants II/photo JMR
Complaya trilobata    Close-view/photo MT
Complaya trilobata    One flower/photo MT
Complaya trilobata    Many flowers/photo MT
Conium maculatum    Large plants/photo JMR
Conium maculatum    Young fruit/photo JMR
Conium maculatum    Young ferny foliage/photo BAR
Conium maculatum    Big plant/photo BAR
Convolvulus arvensis    A patch of plants.../photo BAR
Convolvulus arvensis    Medium view/photo BAR
Convolvulus arvensis    A closer view/photo BAR
Convolvulus arvensis    Flowers/photo JMR
Convolvulus arvensis    Leaves/photo BAR (WYSIWYG--see note at bottom)
Convolvulus arvensis    In a plowed field/photo JMR
Convolvulus arvensis    Canyon preserve/photo JMR
Coronilla varia    A flowering pagoda/photo JMR
Coronilla varia    Shoot showing flowerheads and pods/photo JMR
Coronilla varia    A clump of plants/photo JMR
Coronilla varia    Many more plants/photo JMR
Coronilla varia    Thick patch I/photo MT
Coronilla varia    Thick patch II/photo MT
Coronilla varia    Thick patch III/photo MT
Cortaderia jubata    A grand plant with plumes/photo JMR
Cortaderia jubata    Plants growing on a hillside/photo JMR
Cortaderia jubata    Close up view of a seed plume/photo JMR
Cortaderia jubata    Backlit plumes/photo MT
Cortaderia jubata    Invaded hillside/photo MT
Cortaderia jubata    Pretty plants I/photo MT
Cortaderia jubata    Pretty plants II/photo MT
Cortaderia jubata    Horrible hillside I/photo MT
Cortaderia jubata    Horrible hillside II/photo MT
Cortaderia jubata    Green plants/photo MT
Cortaderia jubata    Spot the human!/photo BAR
Cortaderia jubata    Too many plants!/photo JMR
Cortaderia selloana    Attacking a home?/photo Joe DiTomaso(*)
Cortaderia selloana    Single plant/photo Joe DiTomaso(*)
Cortaderia selloana    Inflorescence/photo Joe DiTomaso(*)
Crocosmia x crocosmiiflora    Flowers!/photo JMR
Crocosmia x crocosmiiflora    Plants/photo JMR
Cryptocoryne beckettii    Plant underwater/photo Paul Krombholz(*)
Cryptocoryne beckettii    Triploid form/photo Jan D. Bastmeijer(*)
Cryptocoryne beckettii    Flower/photo Jan D. Bastmeijer(*)
Cryptocoryne beckettii    More flowers/photo Jan D. Bastmeijer(*)
Cynanchum rossicum    Reaching into a tree/photo JMR
Cynanchum rossicum    Old plants/photo Bill Jacobs(*)
Cynanchum rossicum    Flowers/photo JMR
Cynanchum rossicum    Fruiting pods/photo JMR
Cynanchum rossicum    Roadside/photo Bill Jacobs(*)
Cynanchum rossicum    Infestation/photo JMR
Cynanchum rossicum    Backyard badboy/photo JMR
Cynanchum rossicum    Leaves and fruit/photo JMR
Cynanchum rossicum    Many pods/photo Bill Jacobs(*)
Cynanchum rossicum    In forest I/photo Bill Jacobs(*)
Cynanchum rossicum    In forest II/photo Bill Jacobs(*)
Cynanchum rossicum    Big field/photo Bill Jacobs(*)
Cynoglossum officinale    A plant I/photo JMR
Cynoglossum officinale    A plant II/photo JMR
Cynoglossum officinale    A plant III/photo JMR
Cynoglossum officinale    Inflorescence/photo JMR
Cynoglossum officinale    Flower detail/photo JMR
Cynoglossum officinale    Roots!/photo MT
Cynosurus echinatus    Strange flowers/photo BAR
Cyperus entrerianus    Seeds/photo MT
Cyperus entrerianus    Plants/photo MT
Cyperus entrerianus    Dense growth/photo MT
Cyperus entrerianus    Choked field/photo MT
Cytisus multiflorus    Plant/photo JMR
Cytisus multiflorus    On a hill/photo JMR
Cytisus scoparius    A field of young plants/photo JMR
Cytisus scoparius    Dense growth on hill/photo JMR
Cytisus scoparius    A band of plants on a hillside/photo JMR
Cytisus scoparius    Flower closeup/photo BAR
Cytisus scoparius    On a dune/photo JMR
Dactylis glomerata    Nasty spikelets/photo JMR
Daucus carota    Fruit/photo BAR
Daucus carota    Flowers I/photo BAR
Daucus carota    Flowers II/photo JMR
Delairea odorata    Infesting a forest/photo JMR
Delairea odorata    Leaves and flowers/photo JMR
Delairea odorata    Leaves/photo BAR
Delairea odorata    Crawling up a hill/photo BAR
Delairea odorata    at Featherbed (South Africa)/photo Greg Archbald(*)
Delairea odorata    at Giant's Castle I (South Africa)/photo Greg Archbald(*)
Delairea odorata    at Giant's Castle II (South Africa)/photo Greg Archbald(*)
Delairea odorata    Many leaves/photo BAR
Delairea odorata    Evil swathe/photo JMR
Delairea odorata    Inflorescences/photo JMR
Delairea odorata    Lost hillside I/photo JMR
Delairea odorata    Lost hillside II/photo JMR
Delairea odorata    Ascending forbs/photo JMR
Delairea odorata    Tree draperies/photo JMR
Digitalis purpurea    Flowers/photo BAR
Digitalis purpurea    More flowers/photo BAR
Digitalis purpurea    Many flowers/photo JMR
Digitalis purpurea    Several plants/photo JMR
Digitalis purpurea    Infestation/photo JMR
Dioscorea bulbifera    A climbing plant/photo JMR
Dioscorea bulbifera    Aerial bulbil/photo JMR
Dioscorea bulbifera    Tree climbers/photo JMR
Dioscorea bulbifera    Double dense!/photo BAR
Dioscorea bulbifera    Dense growth/photo BAR
Dioscorea oppositifolia    Obscuring light/photo Peter Whan(*)
Dioscorea oppositifolia    Obscuring light/photo Peter Whan(*)
Dipsacus fullonum ssp. sylvestris    Rosettes/photo JMR
Dipsacus fullonum ssp. sylvestris    Crack in asphalt/photo JMR
Dipsacus fullonum ssp. sylvestris    Pre-bloom/photo JMR
Dipsacus fullonum ssp. sylvestris    In flower/photo JMR
Dipsacus fullonum ssp. sylvestris    Infested meadow/photo JMR
Dipsacus fullonum    Infested slope I/photo MT
Dipsacus fullonum    Infested slope II/photo MT
Dipsacus sp.    Spiny inflorescence/photo MT
Dipsacus sp.    D. sativus(?) head/photo JMR
Dipsacus sp.    D. sativus(?) invasion/photo JMR
Dipsacus sp.    Landscape invasion/photo JMR
Dissotis rotundifolia    Pretty flowers/photo JMR
Echium candicans    Plants/photo JMR
Echium candicans    Tall spike/photo JMR
Echium candicans    Short spike/photo JMR
Echium candicans    On ocean cliff/photo JMR
Echium plantagineum    Purple flowers/photo JMR
Echium plantagineum    Another look/photo JMR
Echium spp.    New invasion I/photo JMR
Echium spp.    New invasion II/photo JMR
Echium spp.    Flowers/photo JMR
Egeria densa    Leafy plants/photo BAR
Ehrharta calycina    Infestation/photo JMR
Ehrharta longiflora    Inflorescence/photo JMR
Eichhornia crassipes    Flower spike/photo BAR
Eichhornia crassipes    Flowers/photo JMR
Eichhornia crassipes    A lake!/photo JMR
Eichhornia crassipes    Infested waterway I/photo MT
Eichhornia crassipes    Infested waterway II/photo MT
Elaeagnus angustifolia    Fruit/photo JMR
Elaeagnus angustifolia    Flowers/photo JMR
Elaeagnus angustifolia    Red cultivar I/photo BAR
Elaeagnus angustifolia    Red cultivar II/photo BAR
Elaeagnus angustifolia    Encroaching trees/photo JMR
Elaeagnus angustifolia    Along a river/photo JMR
Elaeagnus angustifolia    View from a bridge/photo JMR
Elaeagnus angustifolia    In fruit/photo JMR
Elaeagnus umbellata    Twigs/photo BAR
Elaeagnus umbellata    Leaves and flowers/photo JMR
Elaeagnus umbellata    Fruit!/photo JMR
Eragrostis lehmanniana    A carpet/photo JMR
Eragrostis lehmanniana    Arizona infestation/photo JMR
Eragrostis lehmanniana    Nasty inflorescence/photo JMR
Eragrostis curvula    Weepy plant/photo JMR
Eragrostis curvula    Infestation/photo JMR
Eragrostis curvula    Inflorescence/photo JMR
Eragrostis curvula    Three of them/photo JMR
Eragrostis curvula    Infesting a field/photo JMR
Erechtites minima    Setting seed/photo JMR
Erodium botrys    Flowers/photo JMR
Erodium botrys    Dense patch/photo JMR
Erodium botrys    Flowers & fruit/photo JMR
Erodium cicutarium    Flowers I/photo JMR
Erodium cicutarium    Flowers II/photo JMR
Erodium cicutarium    Flowers III/photo JMR
Erodium moschatum    Flowers/photo JMR
Erodium moschatum    Plant/photo JMR
Eucalyptus globulus    A dangerously large tree/photo JMR
Eucalyptus globulus    Dimorphic leaves/photo BAR
Eucalyptus globulus    Fruit and flowers/photo JMR
Eucalyptus globulus    Young trees/photo BAR
Eucalyptus globulus    Entering a dark grove/photo JMR
Eucalyptus globulus    Inside a dark grove/photo JMR
Eucalyptus globulus    Dark grove II/photo JMR
Eucalyptus globulus    Wicked grove/photo JMR
Euonymus alatus    Fruit/photo Pat Breen(*)
Euonymus alatus    Winged stems/photo BAR
Euonymus alatus    Unwinged stems/photo BAR
Euonymus alatus    Big leaves/photo Pat Breen(*)
Euonymus alatus    Fall foliage/photo Pat Breen(*)
Euonymus fortunei    Leaves & fruit/photo JMR
Euphorbia cyparissias    Many plants/photo JMR
Euphorbia cyparissias    With ruler/photo JMR
Euphorbia cyparissias    In a planting/photo JMR
Euphorbia cyparissias    View from the top/photo Marilyn Jordan (WYSIWYG)
Euphorbia cyparissias    Tall specimen/photo Marilyn Jordan (WYSIWYG)
Euphorbia cyparissias    View from the side/photo Marilyn Jordan (WYSIWYG)
Euphorbia esula    A few plants/photo BAR
Euphorbia esula    A single plant/photo BAR
Euphorbia esula    Fruit/photo JMR
Euphorbia esula    Flowers yield seed.../photo JMR
Euphorbia esula    ...making a sea of woe/photo JMR
Euphorbia esula    Woe, woe, woe!/photo BAR
Euphorbia esula    Yellow patch/photo JMR
Euphorbia esula    Green patch/photo JMR
Euphorbia esula    Flowers/photo JMR
Euphorbia esula    Dense growth/photo JMR
Euphorbia esula    Hillside/photo by Jerry Asher(*)
Euphorbia esula    A small clump I/photo JMR
Euphorbia esula    A small clump II/photo JMR
Euphorbia esula    Biocontrol I: shortly post-release/photo JMR
Euphorbia esula    Biocontrol II: more time passed/photo JMR
Euphorbia terracina    Flower closeup/photo JMR
Ferraria crispa    Flower/photo JMR
Festuca arundinacea    Inflorescence/photo JMR
Festuca arundinacea    Plant I/photo JMR
Festuca arundinacea    Plant II/photo JMR
Ficus carica    Leaves and Fruit/photo Joe Ditomaso(*)
Ficus carica    Muddy resprouts/photo JMR
Ficus carica    In Hawai'i/photo JMR
Ficus carica    In CA forest/photo JMR
Ficus carica    Creek-side, CA/photo JMR
Foeniculum vulgare    A young stand/photo JMR
Foeniculum vulgare    Flowering plant/photo JMR
Foeniculum vulgare    Flower/photo JMR
Foeniculum vulgare    Fennel boulevard/photo JMR
Foeniculum vulgare    Climbing a hill/photo JMR
Foeniculum vulgare    Young plant/photo JMR
Foeniculum vulgare    Dense fennel patch/photo JMR
Foeniculum vulgare    At a preserve/photo JMR
Foeniculum vulgare    At Big Sur, CA/photo JMR
Fraxinus uhdei    Big weed!/photo JMR
Fraxinus uhdei    Leaf/photo JMR
Fraxinus uhdei    Seedlings/photo JMR
Fraxinus uhdei    Post-girdling reprout/photo JMR
Fraxinus uhdei    Trunks/photo JMR
Freesia sp.    Invading Australia/photo JMR
Freesia sp.    Pink flower/photo JMR
Freesia sp.    Yellow flower/photo JMR
Freesia sp.    White flower/photo JMR
Fumaria capreolata    Leaves and flower/photo JMR
Fumaria capreolata    Another shot/photo JMR
 
Genista monspessulanus    Hillside invasion I/photo BAR
Genista monspessulanus    Hillside invasion II/photo JMR
Genista monspessulanus    Hillside invasion III/photo JMR
Genista monspessulanus    Floral close-up/photo JMR
Genista monspessulanus    Flowers & leaves I/photo JMR
Genista monspessulanus    Flowers & leaves II/photo JMR
Genista monspessulanus    Fruit/photo MT
Genista monspessulanus    One plant.../photo MT
Genista monspessulanus    ...Many plants/photo MT
Geranium robertianum    Flowers and leaves/photo JMR
Gleditsia triacanthos    Leaves/photo JMR
Glottidium vesicarium    Before.../photo BAR
Glottidium vesicarium    ...and after!/photo BAR
Glyceria maxima    Young flowers/photo Arne Anderberg(*)
Glyceria maxima    Flower spike I/photo Arne Anderberg(*)
Glyceria maxima    Flower spike II/photo Arne Anderberg(*)
Glyceria maxima    Many plants/photo Arne Anderberg(*)
Glyceria maxima    Botanical painting/photo Monique Reed(*)
Hedera helix    Plant blanket/photo JMR
Hedera helix    Dense foliage/photo BAR
Hedera helix    Leaves/photo JMR
Hedychium gardnerianum    Big plant!/photo JMR
Hedychium gardnerianum    Infestation/photo TNC-Hawai'i(*)
Hedychium gardnerianum    Fruiting stalk /photo JMR
Hedychium gardnerianum    Flower I/photo JMR
Hedychium gardnerianum    Flower II/photo JMR
Helichrysum petiolare    Leaves I/photo JMR
Helichrysum petiolare    Leaves II/photo JMR
Helichrysum petiolare    Bushy growth/photo JMR
Helichrysum petiolare    Infestation/photo JMR
Hemizonia pungens    A young plant/photo JMR
Hemizonia pungens    Flowers I/photo JMR
Hemizonia pungens    Several plants/photo JMR
Hemizonia pungens    Stem density/photo JMR
Hemizonia pungens    Skeletons I/photo JMR
Hemizonia pungens    Teensy flower/photo JMR
Hemizonia pungens    Bolting/photo JMR
Hemizonia pungens    Skeletons II/photo JMR
Hemizonia pungens    Skeletons I/photo JMR
Hemizonia pungens    Flowers II/photo JMR
Hemizonia pungens    From overhead/photo JMR
Hemizonia pungens    In alkali field/photo JMR
Hieracium aurantiacum    Flowering rosette/photo MT
Hieracium aurantiacum    More rosettes/photo MT
Hiptage benghalensis    Plant/photo JMR
Hiptage benghalensis    Flowers & leaves/photo JMR
Hiptage benghalensis    Fruit cluster/photo JMR
Hiptage benghalensis    On hill/photo JMR
Holcus lanatus    Inflorescence/photo JMR
Holcus lanatus    Inflorescence I/photo BAR
Holcus lanatus    Inflorescence II/photo JMR
Holcus lanatus    Inflorescence III/photo JMR
Holcus lanatus    Lot's o inflorescences/photo MT
Holcus lanatus    Many plants/photo JMR
Holcus lanatus    Infestation/photo JMR
Homeria flaccida    Flower/photo JMR
Hordeum jubatum    Grassy knoll/photo BAR
Hordeum murinum subsp. glaucum    Drying stalks/photo BAR
Hordeum murinum subsp. leporinum    Grassy knoll/photo JMR
Hordeum murinum    Grassy patch/photo JMR
Humulus japonicus    Leafy plant/photo JMR
Humulus japonicus    Leaves/photo JMR
Hydrilla verticillata    Shoot/photo Dave Spencer(*)
Hydrilla verticillata    Turions/photo Dave Spencer(*)
Hydrilla verticillata    Infested river/photo JMR
Hyparrhenia hirta    Spreading seed/photo JMR
Hypericum canariense    Flowers/photo J. Wade(*)
Hypericum canariense    Small plants/photo J. Wade(*)
Hypericum canariense    Big plants/photo J. Wade(*)
Hypericum canariense    Infestation/photo J. Wade(*)
Hypericum canariense    Big infestation/photo J. Wade(*)
Hypericum perforatum    Flowers II/photo JMR
Hypericum perforatum    Flowers III/photo JMR
Hypericum perforatum    Small infestation/photo JMR
Hypericum perforatum    Flowers I/photo BAR
Hypochaeris spp.    Flower, OR/photo JMR
Hypochaeris spp.    Flower, CA/photo JMR
Hypochaeris spp.    Infestation in fog, CA/photo JMR
Impatiens walleriana    Pretty weed!/photo JMR
Impatiens spp.    Two flowers/photo MT
Impatiens spp.    A plant/photo MT
Impatiens spp.    Another plant/photo MT
Imperata cylindrica    Infestation in slash pine I/photo JMR
Imperata cylindrica    Infestation in slash pine II/photo JMR
Imperata cylindrica    Infestation/photo JMR
Imperata cylindrica    Spotted.../photo MT
Imperata cylindrica    ...at a street fair!/photo MT
Imperata spp.    Close view/photo JMR
Imperata spp.    Ditch view/photo JMR
Iris pseudacorus    Flowers I/photo JMR
Iris pseudacorus    Flowers II/photo MT
Iris pseudacorus    Flowers III/photo MT
Iris pseudacorus    Streamside/photo MT
Iris pseudacorus    Tall plants/photo MT
Iris pseudacorus    Small clump/photo JMR
Iris pseudacorus    Big clumps/photo JMR
Iris pseudacorus    Without flowers/photo JMR
Iris pseudacorus    Spring regrowth/photo BAR
Isatis tinctoria    Woad is me!/photo Jerry Asher(*)
Jasminum dichotomum    Leaves & flowers I/photo JMR
Jasminum dichotomum    Leaves & flowers II/photo JMR
Jasminum fluminense    w/J. dichotomum/photo JMR
Jasminum fluminense    Leaves & flowers/photo JMR
Kalanchoe pinnatum    Clump/photo JMR
Kochia scoparia    Flowers I/photo JMR
Kochia scoparia    Flowers II/photo JMR
Kochia scoparia    Little 'un/photo JMR
Kochia scoparia    Big 'un/photo JMR
Lactuca serriola    One plant/photo JMR
Lactuca serriola    A few plants/photo JMR
Lactuca serriola    Many plants/photo JMR
Lantana camara    Flowers I/photo BAR
Lantana camara    Flowers II/photo JMR
Lantana camara    Flowers III/photo JMR
Lantana camara    Hawai'i infestation/photo JMR
Lepidium latifolium    Single foe/photo BAR
Lepidium latifolium    Several foes/photo BAR
Lepidium latifolium    Army of foes/photo BAR
Lepidium latifolium    With scientist/photo MT
Lepidium latifolium    Lining a river/photo JMR
Lepidium latifolium    Dried out plants/photo JMR
Lepidium latifolium    Arrangement of inflorescences/photo JMR
Lepidium latifolium    Inflorescences from above/photo JMR
Lepidium latifolium    Bill Neill with uprooted plant/photo JMR
Leptospermum laevigatum    Big bushy tree/photo JMR
Leptospermum laevigatum    Branches/photo JMR
Leptospermum laevigatum    Fruit/photo JMR
Leptospermum laevigatum    Flowers/photo JMR
Lespedeza cuneata    Shoot and leaves/photo JMR
Lespedeza cuneata    Plants/photo JMR
Leucaena leucocephala    Fruiting branch/photo JMR
Leucaena leucocephala    Big seed pods!/photo JMR
Leucaena leucocephala    Tree in a thicket/photo JMR
Ligustrum robustum    Road-side horror/photo JMR
Ligustrum sinense    Nasty bushes/photo BAR
Ligustrum sinense    Wall of leaves/photo BAR
Ligustrum sinense    Fruit/photo BAR
Linaria genistifolia    Gone awry/photo Jerry Asher(*)
Linaria genistifolia    Dormant stems/photo JMR
Linaria genistifolia    Fruit/photo JMR
Linaria genistifolia    Jumping fences/photo MT
Linaria genistifolia    Mountain meadow/photo MT
Linaria genistifolia    Many plants/photo JMR
Linaria genistifolia    Flowers/photo JMR
Linaria genistifolia    More flowers/photo MT
Linaria vulgaris    A few flowers/photo JMR
Linaria vulgaris    A plant/photo JMR
Linaria vulgaris    Big plant/photo JMR
Linaria vulgaris    In flower/photo JMR
Linaria vulgaris    In fruit/photo JMR
Lolium multiflorum    Fruiting branch/photo JMR
Lolium perenne    Close and personal/photo BAR
Lonicera japonica    Flowers/photo JMR
Lonicera japonica    More flowers/photo JMR
Lonicera japonica    A hideous drapery on trees/photo JMR
Lonicera japonica    A dense hillside inundation/photo JMR
Lonicera japonica    Flowers unbound!/photo JMR
Lonicera japonica    Dominating an understory/photo JMR
Lonicera maackii    Flowers/photo JMR
Lonicera maackii    Small tree/photo JMR
Lonicera morrowii    On the beach/photo JMR
Lonicera morrowii    Scaring children/photo JMR
Lonicera morrowii    Flowers I/photo JMR
Lonicera morrowii    Flowers II/photo JMR
Lonicera morrowii    Fruit/photo JMR
Lonicera morrowii    Bush/photo JMR
Lonicera standishii    Leaves/photo JMR
Lonicera tartarica    Flowers and leaves I/photo JMR
Lonicera tartarica    Flowers and leaves II/photo JMR
Lonicera tartarica    Flowers and leaves III/photo JMR
Lonicera sp.    Fruiting branch I/photo JMR
Lonicera sp.    Fruiting branch II/photo JMR
Lonicera sp.    Fruiting branch III/photo JMR
Lonicera sp.    Fruiting branch IV/photo JMR
Lonicera sp.    Flowering branch/photo JMR
Lotus corniculatus    Large mass on a beach/photo JMR
Lotus corniculatus    Yellow flowers/photo JMR
Lotus corniculatus    Take a closer look/photo JMR
Ludwigia peploides    Filling a slough I/photo JMR
Ludwigia peploides    Filling a slough II/photo JMR
Ludwigia peploides    Flowers/photo JMR
Lupinus arboreus    With Carpobrotus edulis/photo JMR
Lupinus arboreus    Fruit/photo JMR
Lupinus arboreus    Flower/photo JMR
Lupinus luteus    Small plants/photo JMR
Lupinus luteus    Big plants/photo JMR
Lupinus luteus    Many plants/photo JMR
Lupinus luteus    Dense growth/photo JMR
Lygodium japonicum    Climbing trees/photo JMR
Lygodium japonicum    Leaves/photo JMR
Lygodium japonicum    Underside of leaves/photo JMR
Lygodium japonicum    More beastliness/photo BAR
Lygodium japonicum    More leaves I/photo BAR (WYSIWYG--see note at bottom)
Lygodium japonicum    More leaves II/photo BAR (WYSIWYG--see note at bottom)
Lygodium japonicum    More leaves III/photo BAR (WYSIWYG--see note at bottom)
Lygodium microphyllum    Infestation!/photo JMR
Lygodium microphyllum    Leaf details/photo MT
Lygodium microphyllum    Close view/photo MT
Lygodium microphyllum    Climbing/photo MT
Lygodium microphyllum    In trees/photo MT
Lygodium microphyllum    Creepy forest/photo MT
Lygodium microphyllum    Outraged scientist!/photo MT
Lysimachia nummularia    Leaves and flowers I/photo MT
Lysimachia nummularia    Leaves and flowers II/photo MT
Lythrum salicaria    A field/photo JMR
Lythrum salicaria    Old stems/photo JMR
Lythrum salicaria    A flower spike/photo BAR
Lythrum salicaria    Several spikes/photo BAR
Lythrum salicaria    Clumps/photo JMR
Lythrum salicaria    Big infestation/photo JMR
Lythrum salicaria    Crowding banks/photo JMR
Lythrum salicaria    Encroaching/photo JMR
Lythrum salicaria    Getting closer/photo JMR
Lythrum salicaria    At Niagara falls/photo JMR
Maclura pomifera    Yellow trees among oaks/photo BAR
Maclura pomifera    Yellow trees & seedlings/photo BAR
Marrubium vulgare    Big plant/photo BAR
Marrubium vulgare    Scraggly plant/photo BAR
Marrubium vulgare    Leaves/photo BAR
Marrubium vulgare    In Arizona/photo JMR
Melaleuca quinquenervia    Invading trees/photo JMR
Melaleuca quinquenervia    Trees on the shore/photo JMR
Melaleuca quinquenervia    Understory totally eliminated/photo JMR
Melaleuca quinquenervia    Helpers!/photo JMR
Melaleuca quinquenervia    Leaves/photo BAR
Melaleuca quinquenervia    Weird bark/photo BAR
Melia azedarach    A plant/photo JMR
Melia azedarach    Fruiting branch/photo JMR
Melia azedarach    Sapling/photo JMR
Melia azedarach    One tree/photo JMR
Melia azedarach    In fruit/photo JMR
Melia azedarach    A closer look at the leaves/photo JMR
Melia azedarach    Fruit/photo JMR
Melia azedarach    Leaf study/photo JMR
Melianthus major    Flower/photo JMR
Melianthus major    Close up shot of flower/photo JMR
Melianthus major    Bush/photo JMR
Melilotus alba    A plant/photo JMR
Melilotus alba    Flowers/photo JMR
Melilotus alba    Fruit/photo JMR
Melilotus alba    Children beware!/photo JMR
Melilotus alba    w/M. officinalis/photo MT
Melilotus officinalis    Flowers/photo JMR
Melilotus officinalis    Irritating plants/photo JMR
Melilotus officinalis    Dense patches on plains/photo JMR
Melilotus officinalis    On the road again.../photo JMR
Melilotus officinalis    Lakeside/photo JMR
Melinis minutiflora    Plants/photo JMR
Melinis minutiflora    Hillside infestation/photo JMR
Melinis minutiflora    Lotsa plants!/photo JMR
Melinis minutiflora    Inflorescence/photo JMR
Melinis minutiflora    Marching into shrublands/photo JMR
Melinis minutiflora    Stolons/photo JMR
Melinis minutiflora    Red flowers/photo JMR
Melinis minutiflora    Thick stand!/photo Carlos Romero(*)
Melinis minutiflora    New patch I/photo Carlos Romero(*)
Melinis minutiflora    New patch/photo Carlos Romero(*)
Mentha pulegium    Flowers I/photo MT
Mentha pulegium    Flowers II/photo MT
Mentha pulegium    Infestation/photo MT
Merremia tuberosa    Pretty plants and flowers/photo JMR
Mesembryanthemum crystallinum    Closeup of iceplant/photo JMR
Mesembryanthemum crystallinum    Too many plants/photo JMR
Mesembryanthemum nodiflorum    Hardy plant with pink flowers/photo JMR
Miconia calvescens    A nasty young tree/photo Pat Bily(*)
Miconia calvescens    Purple leaves/photo Osha Davidson(*)
Miconia calvescens    A horrible young tree/photo JMR
Miconia calvescens    Seedlings in a recently cleared area/photo JMR
Miconia calvescens    Leaf, upper side/photo JMR
Miconia calvescens    Leaf, underside/photo JMR
Microstegium vimineum    Many plants/photo JMR
Microstegium vimineum    Infestation I/photo JMR
Microstegium vimineum    More plants/photo BAR
Microstegium vimineum    Along a trail/photo JMR
Microstegium vimineum    Infestation III/photo JMR
Microstegium vimineum    Infestation II/photo JMR
Microstegium vimineum    Leaves/photo JMR
Microstegium vimineum    Illustration/photo JMR(*)
Mimosa pudica    Before abuse/photo BAR
Mimosa pudica    After abuse/photo BAR
Miscanthus sinensis    Thick clumps/photo Tom Richards(*)
Miscanthus sinensis    Resprouting after fire/photo Tom Richards(*)
Miscanthus sinensis    Blanketing a hillside/photo Tom Richards(*)
Miscanthus sinensis    Green grass/photo JMR
Miscanthus sinensis    Planted in D.C./photo Marilyn Jordan(*)
Miscanthus sinensis    Long Island, NY/photo Marilyn Jordan(*)
Miscanthus sinensis    Menacing M. Jordan/photo John Gallagher(*)
Miscanthus sinensis    In North Carolina/photo BAR
Miscanthus sinensis    More in North Carolina/photo BAR
Miscanthus sinensis    Flowers in North Carolina/photo BAR
Morus alba    Leaves and fruit/photo JMR
Morus alba    Glossy leaves/photo JMR
Myrica faya    Branch/photo JMR
Myrica faya    Trees/photo JMR
Myrica faya    More trees/photo JMR
Myriophyllum aquaticum    Lake view I/photo JMR
Myriophyllum aquaticum    Lake view II/photo JMR
Myriophyllum aquaticum    Emerging leaves I/photo JMR
Myriophyllum aquaticum    Emerging leaves II/photo JMR
Myriophyllum aquaticum    Dominates section of a lake/photo JMR
Myriophyllum spicatum    Leafy plants/photo BAR
Myriophyllum spicatum    Leaf detail/photo BAR
Nicotiana glauca    Flowering branch/photo JMR
Nicotiana glauca    Flowers/photo JMR
Olea europaea    Post-cut resprouts/photo JMR
Ononis alopecuroides    Flowers/photo Fred Hrusa(*)
Ononis alopecuroides    Fruiting head/photo Fred Hrusa(*)
Ononis alopecuroides    Plant gone by/photo Fred Hrusa(*)
Ononis alopecuroides    Infestation/photo Fred Hrusa(*)
Onopordum acanthium    Few rosettes/photo JMR
Onopordum acanthium    Many rosettes/photo JMR
Onopordum acanthium    Bolting plants/photo MT
Onopordum acanthium    Big infestation/photo MT
Onopordum acanthium    With scientist/photo MT
Onopordum acanthium    WIMS monitoring/photo MT
Osteospermum clandestinum    Open and old flower/photo JMR
Osteospermum ecklonis    Pretty flowers/photo JMR
Oxalis hirta    Leaves/photo JMR
Oxalis pes-caprae    Little flowers/photo BAR
Oxalis pes-caprae    Flowers/photo JMR
Oxalis pes-caprae    A carpet through the trees/photo JMR
Oxalis pes-caprae    Flower buds/photo BAR
Oxalis pes-caprae    Leaves at noon/photo BAR
Oxalis pes-caprae    Leaves at midnight/photo BAR
Oxalis pes-caprae    More at night/photo BAR
Oxalis pes-caprae    Lotsa flowers/photo BAR
Paederia foetida    Draping trees/photo JMR
Paspalum dilatatum    Weird flowers/photo BAR
Paspalum dilatatum    Close view/photo BAR
Paspalum dilatatum    Closest view/photo BAR
Passiflora suberosa    Drapery/photo JMR
Passiflora suberosa    Leaves & flowers/photo JMR
Passiflora sp.    Flower/photo MT
Passiflora sp.    Flower up close I/photo MT
Passiflora sp.    Flower up close II/photo MT
Passiflora sp.    Flower sliced/photo MT
Passiflora sp.    In bud/photo MT
Passiflora sp.    Medium view/photo MT
Passiflora sp.    Big view/photo MT
Passiflora sp.    Maxi view/photo MT
Passiflora tarminiana (P. mollissima)    Pretty flower I/photo JMR
Passiflora tarminiana (P. mollissima)    Pretty flower II/photo MT
Passiflora tarminiana (P. mollissima)    Plants/photo TCN/Hawai'i(*)
Passiflora tarminiana (P. mollissima)    Fruit/photo MT
Passiflora tarminiana (P. mollissima)    Flower & fruit/photo MT
Passiflora tarminiana (P. mollissima)    Twiny vines/photo MT
Passiflora tarminiana (P. mollissima)    Lots of growth/photo JMR
Pastinaca sativa    Infestation/photo JMR
Pastinaca sativa    Inflorescence/photo JMR
Pastinaca sativa    Yellow flowered plant/photo JMR
Paulownia tomentosa    Branch/photo JMR
Paulownia tomentosa    Flowers/photo JMR
Paulownia tomentosa    Tree/photo BAR
Paulownia tomentosa    Leaves/photo BAR
Paulownia tomentosa    Fruit hulls/photo BAR
Paulownia tomentosa    Fruiting branches/photo BAR
Pennisetum clandestinum    Weird stolons/photo BAR
Pennisetum clandestinum    Viewed from below/photo BAR
Pennisetum purpureum    with Melinus/photo JMR
Pennisetum setaceum    A field of plants/photo JMR
Pennisetum setaceum    Arroyo-side plants/photo JMR
Pennisetum setaceum    Invading palms/photo JMR
Pennisetum setaceum    Inflorescence/photo JMR
Pennisetum setaceum    In rocks I/photo JMR
Pennisetum setaceum    In rocks II/photo JMR
Phalaris aquatica    Vile seedheads/photo BAR
Phalaris arundinacea    As far as the eye.../photo MT
Phalaris arundinacea    Many flowers/photo JMR
Phalaris arundinacea    Water's edge/photo JMR
Phalaris arundinacea    A green carpet/photo JMR
Phalaris arundinacea    Young flowers/photo JMR
Phalaris arundinacea    Old flowers/photo BAR
Phalaris arundinacea    Leaf crimps/photo BAR
Phalaris arundinacea    A small plant/photo BAR
Phalaris arundinacea    Big plants/photo BAR
Phalaris arundinacea    By a hill/photo JMR
Phalaris arundinacea    Anthesis/photo JMR
Phalaris arundinacea    Reedy!/photo MT
Phalaris arundinacea    Streamside/photo JMR
Phalaris arundinacea var. picta    Close view/photo MT
Phalaris arundinacea var. picta    Variegated leaves/photo MT
Phalaris arundinacea var. picta    Waterside clumps/photo MT
Phalaris arundinacea var. picta    Thick growth/photo MT
Phalaris arundinacea var. picta    Big infestation/photo MT
Phellodendron amurense    Mature tree/photo Pat Breen(*)
Phellodendron amurense    Autumn tree/photo Pat Breen(*)
Phellodendron amurense    Bark/photo Pat Breen(*)
Phellodendron amurense    Leaf study/photo Pat Breen(*)
Phellodendron amurense    Mass male flowering/photo Pat Breen(*)
Phellodendron amurense    Female flowers/photo Pat Breen(*)
Phellodendron amurense    Male flowers/photo Pat Breen(*)
Phellodendron amurense    Fruit I/photo Pat Breen(*)
Phellodendron amurense    Fruit II/photo Pat Breen(*)
Phleum pratense    Near a tyke/photo JMR
Phleum pratense    Close view/photo JMR
Phragmites australis    Dense plants/photo JMR
Phragmites australis    Waterside/photo JMR
Phragmites australis    In the sunset/photo JMR
Phragmites australis    Many plants/photo JMR
Phragmites australis    Shoreline plants/photo JMR
Phragmites australis    On pilings/photo JMR
Phragmites australis    Old stems/photo JMR
Phragmites australis    Grand Canyon I/photo JMR
Phragmites australis    Grand Canyon II/photo JMR
Phragmites australis    More plants/photo JMR
Phragmites australis    Nodes--native strain/photo JMR
Phragmites australis    Plants--native strain/photo JMR
Phragmites australis    Tall reeds/photo MT
Phyla nodiflora    Patches/photo JMR
Phyla nodiflora    Leaves/photo BAR
Phyla nodiflora    Flowers/photo BAR
Physalis peruviana    Fruit/photo JMR
Picris echioides    Flowers/photo JMR
Picris echioides    Many flowers/photo JMR
Picris echioides    Rosette I/photo JMR
Picris echioides    Rosette II/photo JMR
Pinus elliotii    On hillside/photo JMR
Pinus elliottii    Young tree/photo JMR
Pinus elliottii    Cones/photo JMR
Pinus elliottii    Riverside/photo JMR
Pinus patula    Branch/digital photo JMR
Pinus patula    One tree/digital photo JMR
Pinus patula    Several trees/digital photo JMR
Pistacia chinensis    Landscape tree/photo JMR
Pistacia chinensis    Leaves/photo JMR
Pittosporum undulatum    Leaves and flowers/photo JMR
Poa bulbosa    "Flowers"/photo BAR
Poa bulbosa    A single stalk/photo MT
Poa pratensis    Seedy plants/photo JMR
Poa pratensis    More seeds/photo JMR

 
 
Polygonum cuspidatum    A large plant/photo JMR
Polygonum cuspidatum    Branches/photo JMR
Polygonum cuspidatum    A branch/photo JMR
Polygonum cuspidatum    Flowers/photo JMR
Polygonum cuspidatum    Flower buds/photo BAR
Polygonum cuspidatum    A pink plant/photo BAR
Polygonum cuspidatum    Pink branch/photo BAR
Polygonum cuspidatum    Pink flowers/photo BAR
Polygonum cuspidatum    Riverside/photo JMR
Polygonum cuspidatum    Big plant/photo MT
Polygonum cuspidatum    Green branches/photo MT
Polygonum perfoliatum    Japanese beetles/photo JMR
Polygonum perfoliatum    Beetle damage/photo JMR
Polygonum perfoliatum    Thwarted scientists/photo JMR
Polygonum perfoliatum    Nasty leaves/photo JMR
Polygonum perfoliatum    Nasty branch/photo JMR
Polygonum perfoliatum    A big lump/photo courtesy Bill Jacobs (*)
Polygonum perfoliatum    Climbing bushes/photo courtesy Bill Jacobs (*)
Polygonum perfoliatum    Climbing trees/photo courtesy Bill Jacobs (*)
Polypogon monspeliensis    Fuzzy flowers/photo BAR
Potentilla recta    Flowers/photo JMR
Potentilla recta    Plants/photo JMR
Potentilla recta    Hillside/photo Jerry Asher(*)
Populus nigra var. italica    Big trees/photo JMR
Populus nigra var. italica    Sucker plantlet/photo JMR
Prosopis pallida    Trees/photo JMR
Psidium cattleianum    An invasive tree/photo JMR
Psidium guajava    Dense tree/photo JMR
Psidium guajava    Leaves/photo JMR
Psoralea pinnata    Leaves and flowers/photo JMR
Psoralea pinnata    Floral close-up/photo JMR
Psoralea pinnata    Bush/photo JMR
Pueraria montana    Landscape consumer/photo JMR
Pueraria montana    More kudzu landscape/photo JMR
Pueraria montana    The beverage!/photo JMR
Pueraria montana    The weed!/photo BAR
Pueraria montana    On a few shrubs/photo BAR
Pueraria montana    On more shrubs/photo BAR
Pueraria montana    On a tree/photo BAR
Pueraria montana    The flowers!/photo BAR
Pueraria montana    Leaflets three/photo MT
Pueraria montana    Invasions--so sad/photo BAR
Pueraria montana    Scientist imperilled/photo MT
Quercus acutissima    Leaves/photo JMR
Quercus acutissima    Landscape tree/photo JMR
Ranunculus ficaria    In garden/photo MT
Ranunculus ficaria    Viewed closer/photo MT
Ranunculus ficaria    Wider view/photo MT
Raphanus sativus    Bad foliage/photo JMR
Rhamnus cathartica    Foliage I/photo JMR
Rhamnus cathartica    Fruit I/photo JMR
Rhamnus cathartica    Orange tissue/photo JMR
Rhamnus cathartica    Foliage II/photo JMR
Rhamnus cathartica    Fruit III/photo JMR
Rhamnus cathartica    Fruit II/photo JMR
Rhamnus cathartica    Leafing out/photo JMR
Rhamnus cathartica    Invasion/photo JMR
Rhamnus frangula    Plant/photo JMR
Rhamnus frangula    Flowers/photo JMR
Rhamnus frangula    Fruit.../photo JMR
Rhamnus frangula    ...and more fruit/photo JMR
Rhamnus frangula    Twigs/photo JMR
Rhamnus frangula    Encroaching/photo JMR
Rhamnus frangula    Seedlings & resprouts/photo JMR
Rhodomyrtus tomentosus    Shrubs/photo JMR
Rhodotypos scandens    Leaves and fruit/photo JMR
Rhodotypos scandens    Leaves/photo JMR
Rhodotypos scandens    Seeds/photo JMR
Ricinus communis    Leaves/photo JMR
Ricinus communis    More leaves/photo JMR
Ricinus communis    Flowers/photo JMR
Ricinus communis    Autumnal bush/photo BAR
Ricinus communis    Toxic beans/photo BAR
Ricinus communis    Oceanside/photo MT
Rivina humilis    Leaves and fruit/photo JMR
Robinia pseudoacacia    Small trees/photo JMR
Robinia pseudoacacia    Big trees/photo JMR
Robinia pseudoacacia    Flowers/photo JMR
Robinia pseudoacacia    More flowers/photo JMR
Robinia pseudoacacia    Flowering branch/photo JMR
Robinia pseudoacacia    Tree bark/photo JMR
Robinia pseudoacacia    Fruit/photo JMR
Robinia pseudoacacia    Young tree/photo JMR
Robinia pseudoacacia    Lone tree/photo MT
Robinia pseudoacacia    Dried pods I/photo MT
Robinia pseudoacacia    Dried pods II/photo MT
Romulea rosea    Flowers I/photo David Fowler(*)
Romulea rosea    Flowers II/photo David Fowler(*)
Romulea rosea    Flowers III/photo David Fowler(*)
Romulea rosea    Sandy plant/photo JMR
Romulea rosea    Flower close-up/photo JMR
Rosa multiflora    Thorns/photo BAR
Rosa multiflora    Fruit/photo BAR
Rosa multiflora    Flowers I/photo JMR
Rosa multiflora    Stolon formation/photo JMR
Rosa multiflora    Clambering upslope/photo JMR
Rosa multiflora    Scientists in peril!/photo JMR
Rosa multiflora    Stipulate leaf/photo JMR
Rosa multiflora    wi/rosette disease/photo JMR
Rosa multiflora    Flowers II/photo JMR
Rosa multiflora    Big bush!/photo JMR
Rubus argutus    Thorny brambles aplenty/photo JMR
Rubus argutus    More thorny plants/photo Pat Bily(*)
Rubus argutus    Ripening fruit/photo JMR
Rubus argutus    Flower/photo JMR
Rubus armeniacus    Plants/photo JMR
Rubus armeniacus    Leaves and fruit/photo JMR
Rubus armeniacus    Tasty problems/photo JMR
Rubus armeniacus    Flowers/photo JMR
Rubus armeniacus    More flowers/photo JMR
Rubus phoenicolasius    Plants/photo JMR
Rubus phoenicolasius    Spiny branch/photo JMR
Rubus phoenicolasius    Fruit/photo JMR
Rubus phoenicolasius    Yum yum!/photo JMR
Rubus rosifolius    Plants/photo JMR
Rumex crispus    Inflorescence/photo JMR
Rumex crispus    Plants/photo JMR
Rumex crispus    In slough I/photo JMR
Rumex crispus    In slough II/photo JMR
Salicornia bigelovii    Invasion/photo Andrea Pickart(*)
Salvia aethiopis    Hillside plants/photo Jerry Asher(*)
Salsola sp.    Choking branches/photo JMR
Salvinia minima    Floating plants/photo BAR
Salvinia minima    Gobbling a pond/photo BAR
Salvinia minima    Many leaves/photo BAR
Salvinia minima    In a bayou/photo BAR
Salvinia molesta    A plant/photo BAR
Salvinia molesta    Leaf surface/photo BAR
Salvinia molesta    Leaf hairs/photo BAR
Sapium sebiferum    Catkin/photo JMR
Sapium sebiferum    Looking upwards/photo MT
Sapium sebiferum    Young tree/photo JMR
Sapium sebiferum    Fruit/photo JMR
Sapium sebiferum    Infestation!/photo JMR
Sapium sebiferum    Don't eat the fruit!/photo BAR
Sapium sebiferum    Autumn leaves/photo Elizabeth Salvia(*)
Sapium sebiferum    Resprouts/photo JMR
Sapium sebiferum    Green leaves/photo JMR
Sapium sebiferum    Landscape tree/photo JMR
Saponaria officinalis    Pretty flowers/photo JMR
Saponaria officinalis    A whole plant/photo JMR
Scaevola sericea    Flowers/photo MT
Scaevola sericea    Flowers and fruit/photo MT
Scaevola sericea    Many fruit/photo MT
Scaevola sericea    Plant/photo MT
Schinus molle    Fruiting branch/photo JMR
Schinus molle    Tree branches/photo JMR
Schinus molle    Leaves/photo BAR
Schinus molle    Flowering branch/photo BAR
Schinus molle    Floral close-up/photo BAR
Schinus molle    Fruit/photo BAR
Schinus polygamus    Branches/photo BAR
Schinus polygamus    Leaves/photo BAR
Schinus polygamus    Nasty apical spine/photo BAR
Schinus polygamus    Bolting suckers/photo BAR
Schinus polygamus    Bark/photo BAR
Schinus terebinthifolius    Flowering branch/photo JMR
Schinus terebinthifolius    Fruiting branch/photo JMR
Schinus terebinthifolius    Fruit/photo JMR
Schinus terebinthifolius    Sterile understory/photo JMR
Schinus terebinthifolius    Young leaves/photo BAR
Schinus terebinthifolius    Old fruit I/photo BAR
Schinus terebinthifolius    Old fruit II/photo BAR
Schinus terebinthifolius    Shaded leaves/photo BAR
Schinus terebinthifolius    Sunny leaves/photo BAR
Schismus spp.    On desert floor I/photo JMR
Schismus spp.    On desert floor II/photo JMR
Senecio jacobaea    Flowering plant/photo MT
Sesbania exaltata    Branchlet/photo BAR
Sesbania punicea    Small tree/photo JMR
Sesbania punicea    Flowering branch/photo JMR
Sesbania punicea    Flowers/photo JMR
Sesbania punicea    Fruit/photo BAR
Sesbania punicea    Fruiting tree/photo BAR
Sesbania punicea    Infested island/photo BAR
Silybum marianum    Prickly plants/photo JMR
Silybum marianum    Spiny flowers I/photo JMR
Silybum marianum    Spiny flowers II/photo JMR
Silybum marianum    Jabbing leaves/photo JMR
Silybum marianum    A world of pain/photo JMR
Sinapis arvensis    Fruit/photo JMR
Sisymbrium orientale    A grassland invasion/photo JMR
Sisymbrium orientale    Dominating grassland along the road/photo JMR
Sisymbrium orientale    S. orientale patch with billy goat skull/photo JMR
Solanum dulcamara    Flowers and leaves/photo JMR
Solanum viarum    Bushes/photo Randy Westbrooks(*)
Solanum viarum    More bushes/photo JMR
Sonchus arvensis    Flowering plants/photo JMR
Sorghum halepense    Plant portrait/photo BAR
Sorghum halepense    A flowering stem/photo BAR
Sorghum halepense    Branches/photo BAR
Sorghum halepense    Awns on florets/photo BAR
Sorghum halepense    Bad!/photo JMR
Sorghum halepense    A field/photo JMR
Sparaxis bulbifera    White flowered plant/photo JMR
Spartina alterniflora    Mudflat I/photo JMR
Spartina alterniflora    Mudflat II/photo JMR
Spartina alterniflora    Dense plants/photo JMR
Spartium junceum    Flowers/photo JMR
Spartium junceum    More flowers/photo JMR
Spartium junceum    Flowering bushes/photo JMR
Spartium junceum    More invading bushes/photo JMR
Spartium junceum    Young fruit/photo JMR
Spartium junceum    Flowering bush/photo JMR
Spartium junceum    Big plants/photo BAR
Spartium junceum    Needle-branches/photo BAR
Spartium junceum    Branches close up/photo BAR
Spartium junceum    Single bush/photo JMR
Spartium junceum    Flowers close-up/photo JMR
Spathodea campanulata    Branches/photo JMR
Spathodea campanulata    Flowers/photo JMR
Spathodea campanulata    More flowers/photo JMR
Spathodea campanulata    Yellow flowers/photo JMR
Sphaerophysa salsula    Seedlings/photo MT
Sphaerophysa salsula    Dead grey growth/photo MT
Sphaerophysa salsula    Big grey patch/photo MT
Taeniatherum caput-medusae    Close-up of seed head/photo JMR
Taeniatherum caput-medusae    Awns, awns, awns!/photo BAR (WYSIWYG--see note at bottom)
Taeniatherum caput-medusae    Did we mention awns?/photo BAR
Taeniatherum caput-medusae    In the field/photo JMR
Tamarix aphylla    Tree/photo JMR
Tamarix aphylla    Flowers I/photo JMR
Tamarix aphylla    Flowers II/photo JMR
Tamarix aphylla    Leaves/photo JMR
Tamarix parviflora    Flower detail I/photo BAR
Tamarix parviflora    Flower detail II/photo BAR
Tamarix parviflora    Many flowers/photo JMR
Tamarix parviflora    Streamside I/photo JMR
Tamarix parviflora    Streamside II/photo JMR
Tamarix parviflora    Streamside III/photo JMR
Tamarix parviflora    In streambed I/photo JMR
Tamarix parviflora    In streambed II/photo JMR
Tamarix ramosissima    Colorado River/photo JMR
Tamarix ramosissima    In Grand Canyon I/photo JMR
Tamarix ramosissima    In Grand Canyon II/photo JMR
Tamarix ramosissima    Flowers/photo JMR
Tamarix ramosissima    Shrubby trees/photo JMR
Tamarix ramosissima    Single bush/photo JMR
Tamarix ramosissima    Scraggly plants/photo JMR
Tamarix sp.    A bushy plant/photo JMR
Tamarix sp.    In flower/photo JMR
Tamarix sp.    Flower clusters/photo JMR
Tamarix sp.    Fall colors I/photo JMR
Tamarix sp.    Fall colors II/photo JMR
Tamarix sp.    Dense growth/photo JMR
Tamarix sp.    In a river/photo JMR
Tibouchina herbacea    A thick marsh/photo Pat Bily(*)
Tibouchina herbacea    Many plants!/photo Pat Bily(*)
Tibouchina urvilleana    Trees/photo JMR
Tibouchina urvilleana    Flowers/photo JMR
Toona ciliata    Trees/photo JMR
Toona sinensis    Looking up I/photo JMR
Toona sinensis    Looking up II/photo JMR
Tragopogon dubius    Inflorescence/photo JMR
Tragopogon dubius    Plants/photo JMR
Tragopogon porrifolius    Seed head/photo JMR
Tragopogon sp.    Flower, WY/photo JMR
Tragopogon sp.    Seed head, MT/photo JMR
Trapa natans    Lake weeds/photo JMR
Trapa natans    Lots a' weeds/photo JMR
Trapa natans    Where did the lake go?/photo JMR
Trapa natans    On the water's edge/photo JMR
Tribolium obliterum    Along a rock/photo Susan Hubbard(*)
Tribolium obliterum    On the ground/photo Susan Hubbard(*)
Tribolium obliterum    Clusters/photo Susan Hubbard(*)
Tribolium obliterum    Stolons/photo Susan Hubbard(*)
Tribolium obliterum    Herbarium I/photo BAR (WYSIWYG--see note at bottom)
Tribolium obliterum    Herbarium II/photo BAR (WYSIWYG--see note at bottom)
Tribolium obliterum    Herbarium III/photo BAR (WYSIWYG--see note at bottom)
Tribolium uniolae    Inflorescence/photo JMR
Tribulus terrestris    Matted plants/photo JMR
Tribulus terrestris    Spiny fruit-ouch! ouch!/photo JMR
Tribulus terrestris    Sprawling stems/photo JMR
Typha angustifolia    Pondside/photo MT
Typha angustifolia    Tall glade/photo MT
Typha angustifolia    In flower/photo MT
Typha angustifolia    A whole field/photo MT
Typha latifolia    A thick growth/photo BAR
Typha latifolia    Cattails!/photo BAR
Ulex europaeus    A bush and human head/photo JMR
Ulex europaeus    Flowering branch/photo JMR
Ulex europaeus    Pokey branches/photo JMR
Ulex europaeus    Flowers/photo JMR
Ulex europaeus    A panorama/photo JMR
Ulex europaeus    Juvenile plants/photo JMR
Ulmus pumila    Tree/photo JMR
Ulmus pumila    Leaves/photo JMR
Ulmus pumila    Bark/photo JMR
Ulmus pumila    Seedling/photo JMR
Ulmus pumila    Young tree/photo JMR
Urochloa decumbens    Flowers/photo JMR
Utricularia inflata    Emergent inflorescences/photo BAR
Utricularia inflata    Flowers/photo BAR
Utricularia inflata    Many bladders/photo BAR
Utricularia inflata    Bladder--top view/photo BAR
Utricularia inflata    Bladder--side side/photo BAR
Ventenata dubia    Basal leaves/photo BAR (WYSIWYG--see note at bottom)
Ventenata dubia    Spikelets/photo BAR (WYSIWYG--see note at bottom)
Ventenata dubia    Bent awns on flowers/photo BAR (WYSIWYG--see note at bottom)
Ventenata dubia    Infestation/photo JMR
Verbascum blattaria    White flower/photo JMR
Verbascum blattaria    Yellow flower/photo JMR
Verbascum thapsus    Large flowering plants/photo JMR
Verbascum thapsus    A first-year rosette/photo JMR
Verbascum thapsus    Close-up of flowers/photo JMR
Verbascum thapsus    A blight on a beautiful view/photo JMR
Verbascum thapsus    Island invasion/photo JMR
Verbascum thapsus    Wi/weed scientist's children/photo JMR
Verbascum thapsus    Flower close-up/photo JMR
Verbascum thapsus    Dominican Republic rosette/photo JMR
Verbascum thapsus    Dominican Republic sunny invasion/photo JMR
Verbena bonariensis    Plants/photo JMR
Verbena bonariensis    One plant/photo BAR
Verbena bonariensis    Flowers/photo JMR
Vinca major    Foliage/photo JMR
Vinca major    Flowers/photo BAR
Vinca major    Leafy nasties/photo BAR
Vinca major and weed geek    Flowers/photo JMR
Vinca major/V. minor    Flower comparison/photo BAR
Vinca minor    Flowers/photo JMR
Vincetoxicum nigrum    Seedling/photo Charlotte Pyle (USDA) (*)
Vincetoxicum nigrum    Leaves/photo Charlotte Pyle (USDA) (*)
Vincetoxicum nigrum    Flowers/photo Charlotte Pyle (USDA) (*)
Vincetoxicum nigrum    Fruit/photo Charlotte Pyle (USDA) (*)
Vincetoxicum nigrum    Understory infestation/photo JMR
Watsonia bulbillifera    Flowers/photo JMR
Watsonia bulbillifera    Floral close-up/photo JMR
Watsonia bulbillifera    Bulbils galore/photo JMR
Watsonia bulbillifera    More flowers/photo JMR
Watsonia bulbillifera    Big infestation/photo JMR
Wisteria floribunda    Autumn leaves/photo BAR
Wisteria sinensis    Fruiting pods/photo BAR
Wisteria sinensis    Pods in space!/photo BAR
Wisteria sinensis    Pods close up/photo BAR
Wisteria sinensis    Seeds/photo BAR
Wisteria sinensis    Leaves/photo BAR
Wisteria sinensis    Pretty flowers/photo courtesy NCR-EPMT (*)
Wisteria sinensis    Shocked ecologist/photo BAR
Wisteria sinensis    Strangling stem/photo BAR
Xanthium spinosum    Painful plants/photo BAR
Xanthium spinosum    Spiny branch/photo JMR
Xanthium spinosum    Veined leaves/photo JMR
Xanthium strumarium    Dreary plants/photo JMR
Xanthium strumarium    Spiny cockleburs/photo JMR
Xanthium strumarium    Fruiting branch/photo JMR
Xanthium strumarium    Fruiting plant/photo JMR
Zantedeschia aethiopica    Lily/photo JMR
Zantedeschia aethiopica    Many lilies/photo JMR
Zantedeschia aethiopica    Lot's o' lilies/photo JMR
Zantedeschia aethiopica    Shady lilies/photo JMR
Zantedeschia aethiopica    Lookin' at lilies/photo JMR
Zantedeschia aethiopica    Midrange cluster/photo JMR
Zantedeschia aethiopica    Pretty invasion/photo JMR
Zantedeschia aethiopica    By a wetland/photo JMR

http://tncweeds.ucdavis.edu/photosp-z.html

 
Adelges piceae: Balsam woolly adelgid    Healthy fir/photo JMR
Adelges piceae: Balsam woolly adelgid    Dead firs I/photo JMR
Adelges piceae: Balsam woolly adelgid    Dead firs II/photo JMR
Adelges piceae: Balsam woolly adelgid    Dead firs III/photo JMR
Adelges piceae: Balsam woolly adelgid    Adelgid eggs/photo Scott Tunnock, forestryimages.org(*)
Adelges piceae: Balsam woolly adelgid    Adelgid (crawler)/photo USDA archives, forestryimages.org(*)
Adelges piceae: Balsam woolly adelgid    Leaf infestion/photo Robert L. Anderson, forestryimages.org(*)
Adelges piceae: Balsam woolly adelgid    Trunk infestation/photo Scott Tunnock, forestryimages.org(*)
Adelges piceae: Balsam woolly adelgid    Infestation (close view)/photo Ladd Livingston, forestryimages.org(*)
Adelges tsugae: Hemlock woolly adelgid    An infested branchlet/photo JMR
Adelges tsugae: Hemlock woolly adelgid    Closer view I/photo JMR
Adelges tsugae: Hemlock woolly adelgid    Closer view II/photo Dennis J. Souto, forestryimages.org(*)
Adelges tsugae: Hemlock woolly adelgid    Thinning crown/photo Robert L. Anderson, forestryimages.org(*)
Adelges tsugae: Hemlock woolly adelgid    Infestation map/USDA Forest Service(*)
Adelges tsugae: Hemlock woolly adelgid    Dead trees I/photo Faith Campbell
Adelges tsugae: Hemlock woolly adelgid    Dead trees II/photo Dennis J. Souto, forestryimages.org(*)
Adelges tsugae: Hemlock woolly adelgid    Extremely close view/photo Rusty Rhea, forestryimages.org(*)
Agrilus planipennis: Emerald ash borer    Infested tree removal/Faith T. Cambell
Agrilus planipennis: Emerald ash borer    Risk map/USDA Forest Service(*)
Agrilus planipennis: Emerald ash borer    The pest/David Cappaert, Michigan State University(*)
Agrilus planipennis: Emerald ash borer    Adult/David Cappaert, Michigan State University(*)
Agrilus planipennis: Emerald ash borer    Eggs/David Cappaert, Michigan State University(*)
Agrilus planipennis: Emerald ash borer    Larvae/David Cappaert, Michigan State University(*)
Agrilus planipennis: Emerald ash borer    Damage/David Cappaert, Michigan State University(*)
Agrilus planipennis: Emerald ash borer    Epicormic sprouts (signs of damage)/ Ed Czerwinski, Ontario Ministry of Natural Resources(*)
Agrilus planipennis: Emerald ash borer    D-shaped exit hole/David R. McKay, forestryimages.org(*)
Anoplophora chinensis: Citrus longhorned beetle    Bonsai wi/exit hole/photo L. Cruze, USDA/APHIS(*)
Anoplophora chinensis: Citrus longhorned beetle    Intercepted shipments/photo Joe Cavey, USDA/APHIS(*)
Anoplophora chinensis: Citrus longhorned beetle    Adult I/photo Washington State Dept. of Ag., forestryimages.org(*)
Anoplophora chinensis: Citrus longhorned beetle    Adult II/photo Washington State Dept. of Ag., forestryimages.org(*)
Anoplophora chinensis: Citrus longhorned beetle    Exit hole/photo Washington State Dept. of Ag., forestryimages.org(*)
Anoplophora glabripennis: Asian longhorned beetle    Adult I/photo Kenneth R. Law, forestryimages.org(*)
Anoplophora glabripennis: Asian longhorned beetle    Life stages/photo Kenneth R. Law, forestryimages.org(*)
Anoplophora glabripennis: Asian longhorned beetle    Nightmare fodder/photo Kenneth R. Law, forestryimages.org(*)
Anoplophora glabripennis: Asian longhorned beetle    Tree holes/photo Tom Denholm, forestryimages.org(*)
Anoplophora glabripennis: Asian longhorned beetle    Larva/photo Tom Denholm, forestryimages.org(*)
Anoplophora glabripennis: Asian longhorned beetle    Damage/photo Tom Denholm, forestryimages.org(*)
Anoplophora glabripennis: Asian longhorned beetle    Adult II/photo Tom Denholm, forestryimages.org(*)
Anoplophora glabripennis: Asian longhorned beetle    Pre-removal/photo Michael T. Smith USDA/ARS(*)
Anoplophora glabripennis: Asian longhorned beetle    During removal/photo Michael T. Smith USDA/ARS(*)
Anoplophora glabripennis: Asian longhorned beetle    Post-removal/photo Michael T. Smith USDA/ARS(*)
Anoplophora glabripennis: Asian longhorned beetle    Risk map/map USDA/APHIS(*)
Aulacaspis yasumatsui: Asian cycad scale    Damage in Guam/photo Anne Brooke, USFW Guam(*)
Aulacaspis yasumatsui: Asian cycad scale    Cycad mortality/photo Anne Brooke, USFW Guam(*)
Aulacaspis yasumatsui: Asian cycad scale    More Guam damage/photo Anne Brooke, USFW Guam(*)
Aulacaspis yasumatsui: Asian cycad scale    Severe infestation/photo Holly Glenn, University of Florida(*)
Aulacaspis yasumatsui: Asian cycad scale    Severe infestation II/photo Holly Glenn, University of Florida(*)
Cactoblastis cactorum: Cactus moth    Eggstick/photo Susan Ellis, forestryimages.org(*)
Cactoblastis cactorum: Cactus moth    Young caterpillar/photo Don Herbison-Evans, forestryimages.org(*)
Cactoblastis cactorum: Cactus moth    Feasting caterpillars/photo Susan Ellis, forestryimages.org(*)
Cactoblastis cactorum: Cactus moth    Many caterpillars/photo Don Herbison-Evans, forestryimages.org(*)
Cactoblastis cactorum: Cactus moth    Scale bar/photo Susan Ellis, forestryimages.org(*)
Cactoblastis cactorum: Cactus moth    Head shot/photo Susan Ellis, forestryimages.org(*)
Cactoblastis cactorum: Cactus moth    Cocoon/photo Susan Ellis, forestryimages.org(*)
Cactoblastis cactorum: Cactus moth    Pupa revealed/photo Susan Ellis, forestryimages.org(*)
Cactoblastis cactorum: Cactus moth    Adult/photo Susan Ellis, forestryimages.org(*)
Chilecomadia valdiviana: Chilean carpenter worm    Larva/photo Jerry A. Payne, forestryimages.org(*)
Coleophora laricella: Larch casebearer    Tree damage/photo Jerald E. Dewey, forestryimages.org(*)
Coleophora laricella: Larch casebearer    Larvae and brown cases/photo Jerald E. Dewey, forestryimages.org(*)
Coleophora laricella: Larch casebearer    Overwintering larvae/photo USDA photo archives, forestryimages.org(*)
Coleophora laricella: Larch casebearer    Needle damage/photo USDA photo archives, forestryimages.org(*)
Coleophora laricella: Larch casebearer    Feeding larvae/photo Connecticut Agricultural Experiment Station Archives, forestryimages.org(*)
Coleophora laricella: Larch casebearer    Dead trees/photo Dave Powell, forestryimages.org(*)
Cronartium ribicola: White pine blister rust    Dead tree/photo Faith T. Campbell
Cronartium ribicola: White pine blister rust    Symptoms/photo Susan K. Hagle, forestryimages.org(*)
Cronartium ribicola: White pine blister rust    History of spread/map USDA Forest Service(*)
Cryphonectria parasitica : Chestnut blight    Symptoms/photo Robert L. Anderson, forestryimages.org(*)
Cryphonectria parasitica : Chestnut blight    Diseased tree/photo John H. Ghent, forestryimages.org(*)
Ctenopharyngodon idella: Grass carp/White amur    High-res USA distribution/map Liz McKercher/USGS(*)
Ctenopharyngodon idella: Grass carp/White amur    Low-res USA distribution/from high-res version from Liz McKercher/USGS(*)
Discula destructiva: Dogwood anthracnose disease    Leaf damage/photo Robert L. Anderson, forestryimages.org(*)
Discula destructiva: Dogwood anthracnose disease    Flower damage/photo Robert L. Anderson, forestryimages.org(*)
Discula destructiva: Dogwood anthracnose disease    Tree damage/photo Robert L. Anderson, forestryimages.org(*)
Dreissena polymorpha: Zebra mussel    Shells I/photo BAR (WYSIWYG--see note at bottom)
Dreissena polymorpha: Zebra mussel    Shells II/photo BAR
Dreissena polymorpha: Zebra mussel    Shells III/photo JMR
Dreissena polymorpha: Zebra mussel    Shells on beach/photo MT
Dreissena polymorpha: Zebra mussel    Bleached shells I/photo MT
Dreissena polymorpha: Zebra mussel    Bleached shells II/photo MT
Dreissena polymorpha: Zebra mussel    Bleached shells III/photo MT
Dreissena polymorpha: Zebra mussel    Shocked ecologist/photo MT
Dryocosmus kuriphilus: Chestnut gall wasp    Adults/photo Jerry A. Payne, forestryimages.org(*)
Dryocosmus kuriphilus: Chestnut gall wasp    Larvae/photo Jerry A. Payne, forestryimages.org(*)
Dryocosmus kuriphilus: Chestnut gall wasp    Galls/photo Jerry A. Payne, forestryimages.org(*)
Elatobium abietinum: Spruce aphid    Aphid/photo Donald Owen, forestryimages.org(*)
Elatobium abietinum: Spruce aphid    Damaged growth/photo John H. Ghent, forestryimages.org(*)
Elatobium abietinum: Spruce aphid    Damaged tree/photo Donald Owen, forestryimages.org(*)
Elatobium abietinum: Spruce aphid    Damaged trees/photo Andris Eglitis, forestryimages.org(*)
Fusarium circinatum: Pine Pitch Canker    On P. radiata seedling/photo Donald Owen, forestryimages.org(*)
Fusarium circinatum: Pine Pitch Canker    On P. radiata sapling/photo Donald Owen, forestryimages.org(*)
Fusarium circinatum: Pine Pitch Canker    On P. radiata tree/photo Donald Owen, forestryimages.org(*)
Hylurgus ligniperda: Red-haired (=Golden-haired) Pine Bark Beetle    Adults under bark/photo William M. Ciesla, forestryimages.org(*)
Hylurgus ligniperda: Red-haired (=Golden-haired) Pine Bark Beetle    Adult/photo Steve Passoa, forestryimages.org(*)
Hylurgus ligniperda: Red-haired (=Golden-haired) Pine Bark Beetle    Egg gallery/photo William M. Ciesla, forestryimages.org(*)
Hylurgus ligniperda: Red-haired (=Golden-haired) Pine Bark Beetle    Larvae, pupae, adult/photo William M. Ciesla, forestryimages.org(*)
Hylurgus ligniperda: Red-haired (=Golden-haired) Pine Bark Beetle    Seedling damage/photo William M. Ciesla, forestryimages.org(*)
Ips typographus: European spruce beetle    Egg/photo Daniel Adam, forestryimages.org(*)
Ips typographus: European spruce beetle    Larvae/photo Louis-Michel Nageleisen, forestryimages.org(*)
Ips typographus: European spruce beetle    Larva portrait/photo Daniel Adam, forestryimages.org(*)
Ips typographus: European spruce beetle    Adult I/photo Stanislaw Kinelski, forestryimages.org(*)
Ips typographus: European spruce beetle    Adult II/photo Gyorgy Csoka, forestryimages.org(*)
Ips typographus: European spruce beetle    Gallery I/photo Gyorgy Csoka, forestryimages.org(*)
Ips typographus: European spruce beetle    Gallery II/photo Gyorgy Csoka, forestryimages.org(*)
Ips typographus: European spruce beetle    Gallery and larvae/photo Louis-Michel Nageleisen, forestryimages.org(*)
Ips typographus: European spruce beetle    Blue stain/photo Louis-Michel Nageleisen, forestryimages.org(*)
Ips typographus: European spruce beetle    Holes/photo Stanislaw Kinelski, forestryimages.org(*)
Ips typographus: European spruce beetle    Damaged trunks/photo Jan Liska, forestryimages.org(*)
Ips typographus: European spruce beetle    Damaged forest/photo Petr Kapitola, forestryimages.org(*)
Lymantria dispar: European Gypsy moth    Larvae I/photo JMR
Lymantria dispar: European Gypsy moth    Larvae II/photo E. Bradford Walker, forestryimages.org(*)
Lymantria dispar: European Gypsy moth    Larvae III/photo Scott Bauer, forestryimages.org(*)
Lymantria dispar: European Gypsy moth    Pupae: Asian/left, Euro/right/photo Terry McGovern, forestryimages.org(*)
Lymantria dispar: European Gypsy moth    Female (top), male (bottom)/photo USDA archives, forestryimages.org(*)
Lymantria dispar: European Gypsy moth    Male/photo USDA archives, forestryimages.org(*)
Lymantria dispar: European Gypsy moth    Female laying eggs/photo USDA archives, forestryimages.org(*)
Lymantria dispar: European Gypsy moth    Females en masse/photo USDA archives, forestryimages.org(*)
Lymantria dispar: European Gypsy moth    Dead trees I/photo JMR
Lymantria dispar: European Gypsy moth    Dead trees II/photo JMR
Lymantria dispar: European Gypsy moth    Dead trees III/photo USDA Forest Service, forestryimages.org(*)
Lymantria dispar: European Gypsy moth    Dead trees IV/photo Mark Robinson, forestryimages.org(*)
Lymantria dispar: Asian Gypsy moth    Larvae I/photo USDA archives, forestryimages.org(*)
Lymantria dispar: Asian Gypsy moth    Larvae II/photo Terry McGovern, forestryimages.org(*)
Lymantria dispar: Asian Gypsy moth    Variation in males/photo USDA archives, forestryimages.org(*)
Lymantria dispar: Asian Gypsy moth    Adult female I/photo Terry McGovern, forestryimages.org(*)
Lymantria dispar: Asian Gypsy moth    Adult female II/photo John H. Ghent, forestryimages.org(*)
Lymantria dispar: Asian Gypsy moth    Ship inspection/photo USDA Forest Service
Lymantria monacha: Eurasian Nun Moth    Eggs/photo Daniel Adam, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Hatchlings I/photo William M. Ciesla, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Hatchlings II/photo Stanislaw Kinelski, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Young larva/photo Louis-Michel Nageleisen, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Larva/photo Daniel Adam, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Feeding larva/photo Stanislaw Kinelski, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Pupa/photo Daniel Adam, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Portrait of male/photo Stanislaw Kinelski, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Male, dark morph/photo Hannes Lemme, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Male, grey morph/photo Hannes Lemme, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Female I/photo Hannes Lemme, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Female II/photo Hannes Lemme, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Dark male, pale female/photo Hannes Lemme, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Heavy defoliation/photo Hannes Lemme, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Complete defoliation I/photo Hannes Lemme, forestryimages.org(*)
Lymantria monacha: Eurasian Nun Moth    Complete defoliation II/photo Jan Liska, forestryimages.org(*)
Nectria coccinea var. faginata: Beech bark disease    Bagging flowers/photo USDA Forest Service(*)
Nectria coccinea var. faginata: Beech bark disease    Cankers/photo David J. Moorhead, forestryimages.org(*)
Nectria coccinea var. faginata: Beech bark disease    Fruiting bodies/photo Joseph O'Brien, forestryimages.org(*)
Ophiostoma ulmi, O. novo-ulmi: Dutch elm disease    Dead tree/photo Jana Albers, forestryimages.org(*)
Ophiostoma ulmi, O. novo-ulmi: Dutch elm disease    Resistent tree/photo Alden M. Townsend, US Nat. Arboretum, USDA ARS(*)
Orthotomicus erosus: Mediterranean Pine Engraver Beetle    Gallery/photo William M. Ciesla, forestryimages.org(*)
Orthotomicus erosus: Mediterranean Pine Engraver Beetle    Gallery with larvae/photo William M. Ciesla, forestryimages.org(*)
Orthotomicus erosus: Mediterranean Pine Engraver Beetle    Dead tree/photo William M. Ciesla, forestryimages.org(*)
Paratachardina lobata subsp. lobata: Lobate Lac Scale    Two mature females/photo Forrest Howard, fwhoward@ufl.edu(*)
Paratachardina lobata subsp. lobata: Lobate Lac Scale    Many scales/photo Forrest Howard, fwhoward@ufl.edu(*)
Paratachardina lobata subsp. lobata: Lobate Lac Scale    Dead Myrica cerifera/photo Forrest Howard, fwhoward@ufl.edu(*)
Paratachardina lobata subsp. lobata: Lobate Lac Scale    Causing sooty mold/photo Forrest Howard, fwhoward@ufl.edu(*)
Phytophthora cinnamomi: Phytophthora root rot    Symptoms/photo Edward L. Barnard, forestryimages.org(*)
Phytophthora cinnamomi: Phytophthora root rot    Dead trees/photo Edward L. Barnard, forestryimages.org(*)
Phytophthora lateralis: Port-Orford-cedar root disease    Dead tree/photo Faith T. Campbell
Phytophthora lateralis: Port-Orford-cedar root disease    Symptoms/photo Donald Owen, forestryimages.org(*)
Phytophthora ramorum: Sudden oak death    Tanoak damage I/photo JMR
Phytophthora ramorum: Sudden oak death    Tanoak damage II/photo JMR
Phytophthora ramorum: Sudden oak death    Tanoak damage III/photo JMR
Phytophthora ramorum: Sudden oak death    Dead oak I/photo Joseph O'Brien, forestryimages.org(*)
Phytophthora ramorum: Sudden oak death    Dead oak II/photo Joseph O'Brien, forestryimages.org(*)
Phytophthora ramorum: Sudden oak death    Rhododendron damage/photo Bruce Moltzan, MO Dept. of Conservation(*)
Phytophthora ramorum: Sudden oak death    Risk map/map USDA Forest Service(*)
Phytophthora ramorum: Sudden oak death    Host map/map USDA Forest Service(*)
Phytophthora ramorum: Sudden oak death    Oak map/map USDA Forest Service(*)
Phytophthora ramorum: Sudden oak death    Leaf damage/photo Joseph O'Brien, forestryimages.org(*)
Phytophthora ramorum: Sudden oak death    Non-crack bleeding/photo Joseph O'Brien, forestryimages.org(*)
Phytophthora ramorum: Sudden oak death    Zone lines/photo Joseph O'Brien, forestryimages.org(*)
Phytophthora ramorum: Sudden oak death    Risk Map & TNC Portfolio sites/photo TNC Global Priorities Group
Scolytus intricatus: European Oak Bark Beetle    Gallery/photo Gyorgy Csoka, forestryimages.org(*)
Scolytus schevyrewi : Banded Elm Bark Beetle    Adult from side/photo Whitney Cranshaw, forestryimages.org(*)
Scolytus schevyrewi : Banded Elm Bark Beetle    Adult from top/photo Whitney Cranshaw, forestryimages.org(*)
Sirex noctilio: Woodwasp    Adult female I/photo Stanislaw Kinelski, forestryimages.org(*)
Sirex noctilio: Woodwasp    Adult female II/photo William M. Ciesla, forestryimages.org(*)
Sirex noctilio: Woodwasp    Pupae/photo William M. Ciesla, forestryimages.org(*)
Sirex noctilio: Woodwasp    Gallery I/photo Stanislaw Kinelski, forestryimages.org(*)
Sirex noctilio: Woodwasp    Gallery II/photo Gyorgy Csoka, forestryimages.org(*)
Sirex noctilio: Woodwasp    Damaging holes/photo Gyorgy Csoka, forestryimages.org(*)
Sirex noctilio: Woodwasp    Dead trees/photo Stanislaw Kinelski, forestryimages.org(*)
Sirococcus clavigignenti-juglandacearum: Butternut canker    Dead trees/Michael Ostry, USDA Forest Service(*)
Sirococcus clavigignenti-juglandacearum: Butternut canker    Cankers/photo Jana Albers, forestryimages.org(*)
Solenopsis invicta: Red imported fire ants    FIRE ANTS!!!/photo BAR
Solenopsis invicta: Red imported fire ants    MORE FIRE ANTS!!!/photo BAR
Solenopsis invicta: Red imported fire ants    Scrabbling!/photo BAR
Solenopsis invicta: Red imported fire ants    Scurrying!/photo BAR
Solenopsis invicta: Red imported fire ants    Rafting in floodwaters!/photo BAR
Solenopsis invicta: Red imported fire ants    Heads/(*)
Tetropium fuscum: Brown Longhorned Spruce Beetle    Adult/photo Stanislaw Kinelski, forestryimages.org(*)
Tomicus piniperda: Common (or larger) pine shoot beetle    Shoot tip damage/photo Robert A. Haack, forestryimages.org(*)
Tomicus piniperda: Common (or larger) pine shoot beetle    Galleries I/photo Stanislaw Kinelski, forestryimages.org(*)
Tomicus piniperda: Common (or larger) pine shoot beetle    Galleries II/photo Stanislaw Kinelski, forestryimages.org(*)
Tomicus piniperda: Common (or larger) pine shoot beetle    Holes/photo Stanislaw Kinelski, forestryimages.org(*)
Tomicus piniperda: Common (or larger) pine shoot beetle    Adult/photo Gyorgy Csoka, forestryimages.org(*)
Tomicus piniperda: Common (or larger) pine shoot beetle    Twig hole/photo Gyorgy Csoka, forestryimages.org(*)
Tomicus piniperda: Common (or larger) pine shoot beetle    Distribution map/map USDA APHIS PPQ(*)
Xylosandrus crassiusculus : Ambrosia beetle I    Eggs & larvae/photo Michael C. Thomas, forestryimages.org(*)
Xylosandrus crassiusculus : Ambrosia beetle I    Adult/photo Steve Passoa, forestryimages.org(*)
Xylosandrus crassiusculus : Ambrosia beetle I    Damage/photo G. Keith Douce, forestryimages.org(*)
Xylosandrus crassiusculus : Ambrosia beetle I    Frass toothpick/photo G. Keith Douce, forestryimages.org(*)
Xylosandrus crassiusculus : Ambrosia beetle I    Many frass toothpicks/photo Byron Rhodes, forestryimages.org(*)
Xylosandrus mutilatus : Ambrosia beetle II    Adult/photo Will Hudson, forestryimages.org(*)

(*)Image rights are not available for this image through The Nature Conservancy. Contact the image owner for image use guidelines. Images from www.forestryimages.org and/or www.invasive.org are particularly useful for those working on educational projects.
WYSIWYG--Higher resolution images are not available for this file.


 

Other site resources

Invasive plant management
Research the information we have on the management of a particular species of invasive plant here. http://tncweeds.ucdavis.edu/esadocs.html
 
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Research the information we have on the management of a particular species of invasive animal or pathogen here. http://tncweeds.ucdavis.edu/gallery.html
 
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A rogue's gallery of many of the invasive pests and pathogens that have invaded North America, or that have the potential to do so. http://tncweeds.ucdavis.edu/gallery.html
 
 
 
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Invasive animal and pathogen documents & photographs


 
This page includes links to all our resources specific to invasive animal and pathogen species. For information on plant invaders, please refer to our invasive plants page. Note our disclaimer regarding lists of species resources on our web site.

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http://tncweeds.ucdavis.edu/animalpath.html