National Park Service

Mojave Desert I&M Network (MOJN)

MOJN Invasive Plant Guide

Invasive Plant Guide

To download a full PDF version of the Invasive Plant Guide, click here.

Roll-out presentations of this Guide will be provided to each network park within the next several months.

For more information or questions about this guide, please contact Janel_Brackin@nps.gov.



Photo Citation Information

The information below lists photo credits and citation information for all images used in the Invasive Plant Guide for Parks within the Mojave Desert Network. Images are organized by plant family, and then listed in alphabetical order based on the invasive plant's scientific name. All images were either supplied by the National Park Service, were acquired through Creative Commons License Attribution 3.0, or were granted use after permission from the artist was requested. Images were not altered, except minor cropping in order to fit within the guide pages.


Asteraceae (Sunflowers)

Scientific Name
(Common Name)
Citation Photo
Acroptilon repens
(Russian knapweed)
Carrie Norman, National Park Service Image of Acroptilon repens
Acroptilon repens
(Russian knapweed)
© Eric Coombs, Oregon Department of Agriculture, Bugwood.org Image of Acroptilon repens
Acroptilon repens
(Russian knapweed)
Carrie Norman, National Park Service Image of Acroptilon repens
Acroptilon repens
(Russian knapweed)
Carrie Norman, National Park Service Image of Acroptilon repens
Acroptilon repens
(Russian knapweed)
Carrie Norman, National Park Service Image of Acroptilon repens
Acroptilon repens
(Russian knapweed)
Carrie Norman, National Park Service Image of Acroptilon repens
Acroptilon repens look-alike:Machaeranthera canescens Carrie Norman, National Park Service Image of Machaeranthera canescens
Carduus nutans
(Musk thistle)
Todd Pfeiffer, Klamath County Weed Control, Bugwood.org Image of Carduus nutans
Carduus nutans
(Musk thistle)
Mary Ellen (Mel) Harte, Bugwood.org Image of Carduus nutans
Carduus nutans
(Musk thistle)
Bruce Ackley, The Ohio State University, Bugwood.org Image of Carduus nutans
Carduus nutans
(Musk thistle)
Steve Dewey, Utah State University, Bugwood.org Image of Carduus nutans
Carduus nutans look-alike:Cirsium neomexicanum © Jean Pawek, 2013, Calphotos Image of Cirsium neomexicanum
Carduus nutans look-alike:Cirsium neomexicanum Steve Dewey, Utah State University, Bugwood.org Image of Cirsium neomexicanum
Carduus nutans look-alike:Cirsium neomexicanum © James M. Andre, 2004, Calphotos Image of Cirsium neomexicanum
Carduus nutans look-alike:Cirsium neomexicanum © James M. Andre, 2004, Calphotos Image of Cirsium neomexicanum
Centaurea melitensis
(Malta star-thistle)
© James M. Andre, 2005, Calphotos Image of Centaurea melitensis
Centaurea melitensis
(Malta star-thistle)
© Forest and Kim Starr, Starr Environmental, Bugwood.org Image of Centaurea melitensis
Centaurea melitensis
(Malta star-thistle)
© Jordan Zylstra, SBNF (San Bernardino National Forest), 2006, Calphotos Image of Centaurea melitensis
Centaurea melitensis
(Malta star-thistle)
© Jordan Zylstra, SBNF (San Bernardino National Forest), 2006, Calphotos Image of Centaurea melitensis
Centaurea melitensis
(Malta star-thistle)
Joseph M. DiTomaso, University of California Davis, Bugwood.org Image of Centaurea melitensis
Centaurea solstitialis
(Yellow star-thistle)
© Keir Morse, 2008, Calphotos Image of Centaurea solstitialis
Centaurea solstitialis
(Yellow star-thistle)
© Keir Morse, 2008, Calphotos Image of Centaurea solstitialis
Centaurea solstitialis
(Yellow star-thistle)
© Zoya Akulova, 2008, Calphotos Image of Centaurea solstitialis
Centaurea solstitialis
(Yellow star-thistle)
© Robert F. Norris, 2014, Calphotos Image of Centaurea solstitialis
Centaurea stoebe ssp. micranthos
(Spotted knapweed)
Steve Dewey, Utah State University, Bugwood.org Image of Centaurea stoebe ssp. micranthos
Centaurea stoebe ssp. micranthos
(Spotted knapweed)
Carrie Norman, National Park Service Image of Centaurea stoebe ssp. micranthos
Centaurea stoebe ssp. micranthos
(Spotted knapweed)
© Richard Spellenberg, 2014, Calphotos Image of Centaurea stoebe ssp. micranthos
Centaurea stoebe ssp. micranthos
(Spotted knapweed)
Steve Dewey, Utah State University, Bugwood.org Image of Centaurea stoebe ssp. micranthos
Centaurea stoebe ssp. micranthos look-alike:Machaeranthera canescens Carrie Norman, National Park Service Image of Machaeranthera canescens
Cirsium arvense
(Canada thistle)
© Keir Morse, 2008, Calphotos Image of Cirsium arvense
Cirsium arvense
(Canada thistle)
L.L. Berry, Bugwood.org Image of Cirsium arvense
Cirsium arvense
(Canada thistle)
Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org Image of Cirsium arvense
Cirsium arvense
(Canada thistle)
L.L. Berry, Bugwood.org Image of Cirsium arvense
Cirsium arvense
(Canada thistle)
Rob Routledge, Sault College, Bugwood.org Image of Cirsium arvense
Cirsium arvense
(Canada thistle)
© Neal Kramer, 2009, Calphotos Image of Cirsium arvense
Cirsium vulgare
(Bull thistle)
Steve Dewey, Utah State University, Bugwood.org Image of Cirsium vulgare
Cirsium vulgare
(Bull thistle)
Michael Shephard, USDA Forest Service, Bugwood.org Image of Cirsium vulgare
Cirsium vulgare
(Bull thistle)
Loke T. Kok, Virginia Polytechnic Institute and State University, Bugwood.org Image of Cirsium vulgare
Cirsium vulgare
(Bull thistle)
Rob Routledge, Sault College, Bugwood.org Image of Cirsium vulgare
Cirsium vulgare
(Bull thistle)
© Robert Sivinski, 2012, Calphotos Image of Cirsium vulgare
Cirsium vulgare look-alike:Cirsium neomexicanum © Jean Pawek, 2013, Calphotos Image of Cirsium neomexicanum
Cirsium vulgare look-alike:Cirsium neomexicanum © James M. Andre, 2004, Calphotos Image of Cirsium neomexicanum
Cirsium vulgare look-alike:Cirsium neomexicanum © James M. Andre, 2005, Calphotos Image of Cirsium neomexicanum
Lactuca serriola
(Prickly lettuce)
Steve Dewey, Utah State University, Bugwood.org Image of Lactuca serriola
Lactuca serriola
(Prickly lettuce)
Tom Heutte, USDA Forest Service, Bugwood.org Image of Lactuca serriola
Lactuca serriola
(Prickly lettuce)
Tom Heutte, USDA Forest Service, Bugwood.org Image of Lactuca serriola
Lactuca serriola
(Prickly lettuce)
© Neal Kramer, 2008, Calphotos Image of Lactuca serriola
Lactuca serriola
(Prickly lettuce)
© Neal Kramer, 2007, Calphotos Image of Lactuca serriola
Lactuca serriola look-alike:Rafinesquia californica © Keir Morse, 2004, Calphotos Image of Rafinesquia californica
Lactuca serriola look-alike:Rafinesquia californica © Neal Kramer, 2008, Calphotos Image of Rafinesquia californica
Onopordum acanthium
(Scotch thistle)
Grand Canyon-Parahant National Monument, National Park Service Image of Onopordum acanthium
Onopordum acanthium
(Scotch thistle)
Devon Pfeiffer, Bugwood.org Image of Onopordum acanthium
Onopordum acanthium
(Scotch thistle)
Grand Canyon-Parahant National Monument, National Park Service Image of Onopordum acanthium
Onopordum acanthium
(Scotch thistle)
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Image of Onopordum acanthium
Onopordum acanthium look-alike:Cirsium neomexicanum © Belinda Lo, 2013, Calphotos Image of Cirsium neomexicanum
Onopordum acanthium look-alike:Cirsium neomexicanum © Jean Pawek, 2013, Calphotos Image of Cirsium neomexicanum
Sonchus oleraceus
(Common sowthistle)
Chris Evans, Illinois Wildlife Action Plan, Bugwood.org Image of Sonchus oleraceus
Sonchus oleraceus
(Common sowthistle)
Chris Evans, Illinois Wildlife Action Plan, Bugwood.org Image of Sonchus oleraceus
Sonchus oleraceus
(Common sowthistle)
Steve Dewey, Utah State University, Bugwood.org Image of Sonchus oleraceus
Sonchus oleraceus
(Common sowthistle)
Chris Evans, Illinois Wildlife Action Plan, Bugwood.org Image of Sonchus oleraceus
Sonchus oleraceus
(Common sowthistle)
Robert Vidki, Doronicum Kft., Bugwood.org Image of Sonchus oleraceus
Sonchus oleraceus
(Common sowthistle)
©Robert Sikora, 2013, Calphotos Image of Sonchus oleraceus
Sonchus oleraceus look-alike:Senecio mohavensis © Neal Kramer, 2010, Calphotos Image of Senecio mohavensis
Sonchus oleraceus look-alike:Senecio mohavensis © James M. Andre, 2005, Calphotos Image of Senecio mohavensis

Brassicaceae (Mustards)

Scientific Name
(Common Name)
Citation Photo
Brassica tournefortii
(Sahara mustard)
Carrie Norman, National Park Service Image of Brassica tournefortii
Brassica tournefortii
(Sahara mustard)
Carrie Norman, National Park Service Image of Brassica tournefortii
Brassica tournefortii
(Sahara mustard)
Carrie Norman, National Park Service Image of Brassica tournefortii
Brassica tournefortii
(Sahara mustard)
Carrie Norman, National Park Service Image of Brassica tournefortii
Brassica tournefortii
(Sahara mustard)
Patrick J. Alexander, hosted by the USDA-NRCS PLANTS Database Image of Brassica tournefortii
Brassica tournefortii look-alike:Guillenia lasiophylla © Neal Kramer, 2010, Calphotos Image of Guillenia lasiophylla
Brassica tournefortii look-alike:Guillenia lasiophylla © Br. Alfred Brousseau, Saint Mary's College of California, 2005. Image of Guillenia lasiophylla
Brassica tournefortii look-alike:Guillenia lasiophylla © Steve Matson, 2010, Calphotos Image of Guillenia lasiophylla
Cardaria draba
(Hoary cress)
Chris Evans, Illinois Wildlife Action Plan, Bugwood.org Image of Cardaria draba
Cardaria draba
(Hoary cress)
© Luigi Rignanese, 2007, Calphotos Image of Cardaria draba
Cardaria draba
(Hoary cress)
Carrie Norman, National Park Service Image of Cardaria draba
Cardaria draba
(Hoary cress)
Pedro Tenorio-Lezama, Bugwood.org Image of Cardaria draba
Eruca vesicaria ssp. sativa
(Arugula)
© James M. Andre, 2010, Calphotos Image of Eruca vesicaria ssp. sativa
Eruca vesicaria ssp. sativa
(Arugula)
© Neal Kramer, 2011, Calphotos Image of Eruca vesicaria ssp. sativa
Eruca vesicaria ssp. sativa
(Arugula)
© Neal Kramer, 2013, Calphotos Image of Eruca vesicaria ssp. sativa
Eruca vesicaria ssp. sativa
(Arugula)
© Neal Kramer, 2013, Calphotos Image of Eruca vesicaria ssp. sativa
Lepidium latifolium
(Perennial pepperweed)
Steve Dewey, Utah State University, Bugwood.org Image of Lepidium latifolium
Lepidium latifolium
(Perennial pepperweed)
Carrie Norman, National Park Service Image of Lepidium latifolium
Lepidium latifolium
(Perennial pepperweed)
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Image of Lepidium latifolium
Lepidium latifolium
(Perennial pepperweed)
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Image of Lepidium latifolium
Lepidium latifolium
(Perennial pepperweed)
© Jorg Fleige, 2008, Calphotos Image of Lepidium latifolium
Lepidium latifolium
(Perennial pepperweed)
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Image of Lepidium latifolium
Lepidium latifolium look-alike:Lepidium fremontii Desert Botanical Garden Herbarium Collection, SEINet Image Library Image of Lepidium fremontii
Lepidium latifolium look-alike:Lepidium montanum Brigham Young University, S.L. Welsh Herbarium, SEINet Image Library Image of Lepidium montanum
Malcolmia africana
(African mustard)
Carrie Norman, National Park Service Image of Malcolmia africana
Malcolmia africana
(African mustard)
Carrie Norman, National Park Service Image of Malcolmia africana
Malcolmia africana
(African mustard)
Carrie Norman, National Park Service Image of Malcolmia africana
Malcolmia africana
(African mustard)
© Matt Lavin, Wikimedia Commons Image of Malcolmia africana
Malcolmia africana
(African mustard)
© Matt Lavin, Wikimedia Commons Image of Malcolmia africana
Malcolmia africana
(African mustard)
© Stan Shebs, Wikimedia Commons Image of Malcolmia africana
Sisymbrium altissimum
(Tall tumblemustard)
© Thomas Stoughton, 2008, Calphotos Image of Sisymbrium altissimum
Sisymbrium altissimum
(Tall tumblemustard)
© Steve Matson, 2008, Calphotos Image of Sisymbrium altissimum
Sisymbrium altissimum
(Tall tumblemustard)
David Thornburg, SEINet Image Library Image of Sisymbrium altissimum
Sisymbrium altissimum
(Tall tumblemustard)
The Morton Arboretum, Forest Preserve District of DuPage County, SEINet Image Library Image of Sisymbrium altissimum
Sisymbrium altissimum look-alike:Descurainia pinnata © Jean Pawek, 2014, Calphotos Image of Descurainia pinnata
Sisymbrium irio
(London rocket)
© Richard Zmasek, 2006, Calphotos Image of Sisymbrium irio
Sisymbrium irio
(London rocket)
Carrie Norman, National Park Service Image of Sisymbrium irio
Sisymbrium irio
(London rocket)
© Leslie Landrum, SEINet Image Library Image of Sisymbrium irio
Sisymbrium irio
(London rocket)
© Luigi Rignanese, 2005, Calphotos Image of Sisymbrium irio
Sisymbrium irio look-alike:Descurainia pinnata © Jean Pawek, 2014, Calphotos Image of Descurainia pinnata
Sisymbrium orientale
(Indian hedgemustard)
Carrie Norman, National Park Service Image of Sisymbrium orientale
Sisymbrium orientale
(Indian hedgemustard)
Curt Deuser, National Park Service Image of Sisymbrium orientale
Sisymbrium orientale
(Indian hedgemustard)
Curt Deuser, National Park Service Image of Sisymbrium orientale
Sisymbrium orientale
(Indian hedgemustard)
Carrie Norman, National Park Service Image of Sisymbrium orientale
Sisymbrium orientale
(Indian hedgemustard)
Joseph M. DiTomaso, UC Davis, Bugwood.org Image of Sisymbrium orientale
Sisymbrium orientale look-alike:Descurainia pinnata © 2014 Jean Pawek, Calphotos Image of Descurainia pinnata

Chenopodiaceae (Chenopods)

Scientific Name
(Common Name)
Citation Photo
Bassia hyssopifolia
(Fivehook Bassia)
© Zoya Akulova, 2010, Calphotos Image of Bassia hyssopifolia
Bassia hyssopifolia
(Fivehook Bassia)
© Zoya Akulova, 2010, Calphotos Image of Bassia hyssopifolia
Bassia hyssopifolia
(Fivehook Bassia)
Joseph M. DiTomaso, University of California Davis,Bugwood.org Image of Bassia hyssopifolia
Bassia hyssopifolia
(Fivehook Bassia)
Joseph M. DiTomaso, University of California Davis,Bugwood.org Image of Bassia hyssopifolia
Bassia hyssopifolia
(Fivehook Bassia)
© Steve Matson, 2008, Calphotos Image of Bassia hyssopifolia
Bassia hyssopifolia look-alike:Suaeda moquinii Carrie Norman, National Park Service Image of Suaeda moquinii
Bassia scoparia
(Burningbush)
John M. Randall, The Nature Conservancy, Bugwood.org Image of Bassia scoparia
Bassia scoparia
(Burningbush)
Phil Westra, Colorado State University, Bugwood.org Image of Bassia scoparia
Bassia scoparia
(Burningbush)
Jan Samanek, State Phytosanitary Administration, Bugwood.org Image of Bassia scoparia
Bassia scoparia
(Burningbush)
Western New Mexico University Department of Natural Sciences and the Dale A. Zimmerman Herbarium Image of Bassia scoparia
Bassia scoparia
(Burningbush)
Phil Westra, Colorado State University, Bugwood.org Image of Bassia scoparia
Bassia scoparia look-alike:Suaeda moquinii Carrie Norman, National Park Service Image of Suaeda moquinii
Bassia scoparia look-alike:Suaeda moquinii Carrie Norman, National Park Service Image of Suaeda moquinii
Halogeton glomeratus
(Saltlover)
Joseph M. DiTomaso, University of California Davis, Bugwood.org Image of Halogeton glomeratus
Halogeton glomeratus
(Saltlover)
Bonnie Million, National Park Service, Bugwood.org Image of Halogeton glomeratus
Halogeton glomeratus
(Saltlover)
Bonnie Million, National Park Service, Bugwood.org Image of Halogeton glomeratus
Halogeton glomeratus
(Saltlover)
Clinton Shock, Oregon State University, Bugwood.org Image of Halogeton glomeratus
Halogeton glomeratus look-alike:Suaeda moquinii Carrie Norman, National Park Service Image of Suaeda moquinii
Salsola tragus
(Russian Thistle)
Carrie Norman, National Park Service Image of Salsola tragus
Salsola tragus
(Russian Thistle)
Edmond Meinfelder, Wikimedia Commons Image of Salsola tragus
Salsola tragus
(Russian Thistle)
© Forest and Kim Starr, Starr Environmental, Bugwood.org Image of Salsola tragus
Salsola tragus
(Russian Thistle)
© Forest and Kim Starr, Starr Environmental, Bugwood.org Image of Salsola tragus
Salsola tragus
(Russian Thistle)
Carrie Norman, National Park Service Image of Salsola tragus

Poaceae (Grasses)

Scientific Name
(Common Name)
Citation Photo
Achnatherum capense
(Cape ricegrass, Mediterranean steppegrass)
© Luigi Rignanese, 2006, Calphotos Image of Achnatherum capense
Achnatherum capense
(Cape ricegrass, Mediterranean steppegrass)
© Luigi Rignanese, 2005, Calphotos Image of Achnatherum capense
Achnatherum capense
(Cape ricegrass, Mediterranean steppegrass)
© Luigi Rignanese, 2006, Calphotos Image of Achnatherum capense
Achnatherum capense look-alike:Hordeum jubatum © Max Licher, SEINet Image Library Image of Hordeum jubatum
Achnatherum capense look-alike:Elymus elymoides © Max Licher, SEINet Image Library Image of Elymus elymoides
Arundo donax
(Giant reed)
© Chuck Bargeron, University of Georgia, Bugwood.org Image of Arundo donax
Arundo donax
(Giant reed)
© James H. Miller, USDA Forest Service, Bugwood.org Image of Arundo donax
Arundo donax
(Giant reed)
© Bonnie Million, National Park Service, Bugwood.org Image of Arundo donax
Arundo donax
(Giant reed)
© David J. Moorhead, University of Georgia Image of Arundo donax
Arundo donax look-alike:Phragmites australis Carrie Norman, National Park Service Image of Phragmites australis
Arundo donax look-alike:Phragmites australis Janel Brackin, National Park Service Image of Phragmites australis
Avena fatua
(Wild Oat)
© Joseph M. DiTomaso, University of California - Davis, Bugwood.org Image of Avena fatua
Avena fatua
(Wild Oat)
© Jan Samanek, State Phytosanitary Administration, Bugwood.org Image of Avena fatua
Avena fatua
(Wild Oat)
© Jan Samanek, State Phytosanitary Administration, Bugwood.org Image of Avena fatua
Avena fatua
(Wild Oat)
© Steve Dewey, Utah State University, Bugwood.org Image of Avena fatua
Avena fatua
(Wild Oat)
© Julia Scher, Federal Noxious Weeds Disseminules, USDA APHIS ITP, Bugwood.org Image of Avena fatua
Bromus diandrus
(Ripgut Brome)
© Joseph M. DiTomaso, University of California - Davis, Bugwood.org Image of Bromus diandrus
Bromus diandrus
(Ripgut Brome)
© Clint Scheuerman, 2013, Calphotos Image of Bromus diandrus
Bromus diandrus
(Ripgut Brome)
© Max Licher, SEINet Image Library Image of Bromus diandrus
Bromus rubens
(Red Brome)
© John M. Randall, The Nature Conservancy, Bugwood.org Image of Bromus rubens
Bromus rubens
(Red Brome)
Donovan Craig & Carrie Norman, National Park Service Image of Bromus rubens
Bromus rubens
(Red Brome)
© Bonnie Million, National Park Service, Bugwood.org Image of Bromus rubens
Bromus rubens
(Red Brome)
© John M. Randall, The Nature Conservancy, Bugwood.org Image of Bromus rubens
Bromus tectorum
(Cheat grass)
© Pamela B. Trewatha, Missouri State University Image of Bromus tectorum
Bromus tectorum
(Cheat grass)
© Chris Evans, Illinois Wildlife Action Plan, Bugwood.org Image of Bromus tectorum
Bromus tectorum
(Cheat grass)
©Tom Heutte, USDA Forest Service, Bugwood.org Image of Bromus tectorum
Bromus tectorum
(Cheat grass)
© Gary A. Monroe, 2008, Calphotos Image of Bromus tectorum
Bromus tectorum
(Cheat grass)
© Steve Dewey, Utah State University, Bugwood.org Image of Bromus tectorum
Cortaderia selloana
(Pampas grass)
© Forest and Kim Starr, SEINet Image Library Image of Cortaderia selloana
Cortaderia selloana
(Pampas grass)
© Neal Kramer, 2008, Calphotos Image of Cortaderia selloana
Cortaderia selloana
(Pampas grass)
© Kenneth M. Gale, Bugwood.org Image of Cortaderia selloana
Cortaderia selloana look-alike:Phragmites australis Carrie Norman, National Park Service Image of Phragmites australis
Cortaderia selloana look-alike:Phragmites australis © Botaurus stellaris, 2006, Wikimedia Commons Image of Phragmites australis
Cynodon dactylon
(Bermudagrass)
© Patrick Alexander, SEINet Image Library Image of Cynodon dactylon
Cynodon dactylon
(Bermudagrass)
© John M. Randall, The Nature Conservancy, Bugwood.org Image of Cynodon dactylon
Cynodon dactylon
(Bermudagrass)
© John M. Randall, The Nature Conservancy, Bugwood.org Image of Cynodon dactylon
Cynodon dactylon
(Bermudagrass)
© Steve Dewey, Utah State University, Bugwood.org Image of Cynodon dactylon
Cynodon dactylon
(Bermudagrass)
© Zoya Akulova, 2014, Calphotos Image of Cynodon dactylon
Cynodon dactylon look-alike:Distichlis spicata © Robert Sivinski, 2009, Calphotos Image of Distichlis spicata
Cynodon dactylon look-alike:Distichlis spicata © Jorg & Mimi Fleige, 2012, Calphotos Image of Distichlis spicata
Hordeum spp.
(Barley)
© Luigi Rignanese, 2007, Calphotos Image of Hordeum spp.
Hordeum spp.
(Barley)
© Kier Morse, 2008, Calphotos Image of Hordeum spp.
Hordeum spp.
(Barley)
© Luigi Rignanese, 2008, Calphotos Image of Hordeum spp.
Hordeum spp. look-alike:Hordeum jubatum © Max Licher, SEINet Image Library Image of Hordeum jubatum
Hordeum spp. look-alike:Elymus elymoides © Max Licher, SEINet Image Library Image of Elymus elymoides
Hordeum spp. look-alike:Elymus elymoides © Kier Morse, 2010, Calphotos Image of Elymus elymoides
Hordeum spp. look-alike:Elymus elymoides © Kier Morse, 2010, Calphotos Image of Elymus elymoides
Pennisetum ciliare
(Buffelgrass)
Carrie Norman, National Park Service Image of Pennisetum ciliare
Pennisetum ciliare
(Buffelgrass)
© Kier Morse, 2013, Calphotos Image of Pennisetum ciliare
Pennisetum ciliare
(Buffelgrass)
Lake Mead EPMT, National Park Service Image of Pennisetum ciliare
Pennisetum ciliare
(Buffelgrass)
© Steve Matson, , 2009, Calphotos Image of Pennisetum ciliare
Pennisetum ciliare look-alike:Sporobolus airoides © Steve Matson, , 2009, Calphotos Image of Sporobolus airoides
Pennisetum ciliare look-alike:Sporobolus airoides © Neal Kramer 2014, Calphotos Image of Sporobolus airoides
Pennisetum setaceum
(Fountain grass)
Carrie Norman, National Park Service Image of Pennisetum setaceum
Pennisetum setaceum
(Fountain grass)
Carrie Norman, National Park Service Image of Pennisetum setaceum
Pennisetum setaceum
(Fountain grass)
Carrie Norman, National Park Service Image of Pennisetum setaceum
Pennisetum setaceum
(Fountain grass)
Carrie Norman, National Park Service Image of Pennisetum setaceum
Pennisetum setaceum look-alike:Sporobolus airoides © Steve Matson, 2009, Calphotos Image of Sporobolus airoides
Pennisetum setaceum look-alike:Sporobolus airoides © Steve Matson, 2009, Calphotos Image of Sporobolus airoides
Pennisetum setaceum look-alike:Imperata brevifolia Kirsten Lund, National Park Service Image of Imperata brevifolia
Pennisetum setaceum look-alike:Imperata brevifolia © Dean Kelch, 2001, CDFA. Calphotos Image of Imperata brevifolia
Polypogon monspeliensis
(Rabbitsfoot grass)
© Steve Dewey, Utah State University, Bugwood.org Image of Polypogon monspeliensis
Polypogon monspeliensis
(Rabbitsfoot grass)
© Steve Matson, 2006, Calphotos Image of Polypogon monspeliensis
Polypogon monspeliensis
(Rabbitsfoot grass)
© Steve Matson, 2008, Calphotos Image of Polypogon monspeliensis
Polypogon monspeliensis
(Rabbitsfoot grass)
© Luigi Rignanese, 2006, Calphotos Image of Polypogon monspeliensis
Polypogon monspeliensis look-alike:Imperata brevifolia Kirsten Lund, National Park Service Image of Imperata brevifolia
Polypogon monspeliensis look-alike:Imperata brevifolia © Dean Kelch, 2001, CDFA. Calphotos Image of Imperata brevifolia
Saccharum ravennae
(Ravenna grass)
Tarl Norman, National Park Service Image of Saccharum ravennae
Saccharum ravennae
(Ravenna grass)
© Missouri Botanical Garden, 2015 Image of Saccharum ravennae
Saccharum ravennae
(Ravenna grass)
© Joseph M. DiTomaso, University of California - Davis, Bugwood.org Image of Saccharum ravennae
Saccharum ravennae
(Ravenna grass)
© Joseph M. DiTomaso, University of California - Davis, Bugwood.org Image of Saccharum ravennae
Saccharum ravennae
(Ravenna grass)
© NPS, LAKE EPMT Image of Saccharum ravennae
Saccharum ravennae look-alike:Phragmites australis Carrie Norman, National Park Service Image of Phragmites australis
Saccharum ravennae look-alike:Phragmites australis © Botaurus stellaris, 2006, Wikimedia Commons Image of Phragmites australis
Schismus spp.
(Mediterranean grass)
Donovan Craig, National Park Service Image of Schismus spp.
Schismus spp.
(Mediterranean grass)
Curt Deuser, National Park Service Image of Schismus spp.
Schismus spp.
(Mediterranean grass)
© Joseph M. DiTomaso, University of California - Davis, Bugwood.org Image of Schismus spp.
Schismus spp.
(Mediterranean grass)
© Joseph M. DiTomaso, University of California - Davis, Bugwood.org Image of Schismus spp.
Schismus spp.
(Mediterranean grass)
© Joseph M. DiTomaso, University of California - Davis, Bugwood.org Image of Schismus spp.
Schismus spp.
(Mediterranean grass)
© Joseph M. DiTomaso, University of California - Davis, Bugwood.org Image of Schismus spp.
Schismus spp.
(Mediterranean grass)
Mojave Desert Network I&M, National Park Service Image of Schismus spp.
Sorghum halepense
(Johnson grass)
© Charles T. Bryson, USDA Agricultural Research Service, Bugwood.org Image of Sorghum halepense
Sorghum halepense
(Johnson grass)
© Steve Dewey, Utah State University, Bugwood.org Image of Sorghum halepense
Sorghum halepense
(Johnson grass)
© Steve Dewey, Utah State University, Bugwood.org Image of Sorghum halepense
Sorghum halepense
(Johnson grass)
© Barry Rice, 2009, Calphotos Image of Sorghum halepense
Sorghum halepense
(Johnson grass)
© Barry Rice, 2009, Calphotos Image of Sorghum halepense

Miscellaneous Families

Family Scientific Name
(Common Name)
Citation Photo
Simaroubaceae (Quassia) Ailanthus altissima
(Tree-of-heaven)
© Catherine Herms, The Ohio State University, Bugwood.org Image of Ailanthus altissima
Simaroubaceae (Quassia) Ailanthus altissima
(Tree-of-heaven)
© Paul Wray, Iowa State University, Bugwood.org Image of Ailanthus altissima
Simaroubaceae (Quassia) Ailanthus altissima
(Tree-of-heaven)
© Chuck Bargeron, University of Georgia, Bugwood.org Image of Ailanthus altissima
Simaroubaceae (Quassia) Ailanthus altissima
(Tree-of-heaven)
© Jan Samanek, State Phytosanitary Administration, Bugwood.org Image of Ailanthus altissima
Simaroubaceae (Quassia) Ailanthus altissima
(Tree-of-heaven)
Mojave Desert Network I&M, National Park Service Image of Ailanthus altissima
Simaroubaceae (Quassia) Ailanthus altissima
(Tree-of-heaven)
© Chuck Bargeron, University of Georgia, Bugwood.org Image of Ailanthus altissima
Simaroubaceae (Quassia) Ailanthus altissima look-alike:Rhus glabra © James H. Miller & Ted Bodner, Southern Weed Science Society, Bugwood.org Image of Rhus glabra
Simaroubaceae (Quassia) Ailanthus altissima look-alike:Rhus glabra © Barry Breckling, 2010, Calphotos Image of Rhus glabra
Morningglory Family (Convolvulaceae) Convolvulus arvensis
(Field bindweed)
Carrie Norman, National Park Service Image of Convolvulus arvensis
Morningglory Family (Convolvulaceae) Convolvulus arvensis
(Field bindweed)
Phil Westra, Colorado State University, Bugwood.org Image of Convolvulus arvensis
Morningglory Family (Convolvulaceae) Convolvulus arvensis
(Field bindweed)
Carrie Norman, National Park Service Image of Convolvulus arvensis
Morningglory Family (Convolvulaceae) Convolvulus arvensis
(Field bindweed)
Pamela B. Trewatha, Missouri State University Image of Convolvulus arvensis
Morningglory Family (Convolvulaceae) Convolvulus arvensis look-alike:Calystegia sepium Bruce Ackley, The Ohio State University, Bugwood.org Image of Calystegia sepium
Morningglory Family (Convolvulaceae) Convolvulus arvensis look-alike:Calystegia sepium Rebekah D. Wallace, University of Georgia, Bugwood.org Image of Calystegia sepium
Elaeagnaceae (Oleaster) Elaeagnus angustifolia
(Russian olive)
© Robert Vid©ki, Doronicum Kft., Bugwood.org Image of Elaeagnus angustifolia
Elaeagnaceae (Oleaster) Elaeagnus angustifolia
(Russian olive)
© Pat Breen, Oregon State University Image of Elaeagnus angustifolia
Elaeagnaceae (Oleaster) Elaeagnus angustifolia
(Russian olive)
Carrie Norman, National Park Service Image of Elaeagnus angustifolia
Elaeagnaceae (Oleaster) Elaeagnus angustifolia
(Russian olive)
© Louis-M. Landry, 2008, Calphotos Image of Elaeagnus angustifolia
Elaeagnaceae (Oleaster) Elaeagnus angustifolia
(Russian olive)
Carrie Norman, National Park Service Image of Elaeagnus angustifolia
Elaeagnaceae (Oleaster) Elaeagnus angustifolia look-alike:Salix exigua Carrie Norman, National Park Service Image of Salix exigua
Elaeagnaceae (Oleaster) Elaeagnus angustifolia look-alike:Salix exigua Carrie Norman, National Park Service Image of Salix exigua
Elaeagnaceae (Oleaster) Elaeagnus angustifolia look-alike:Salix exigua © Russell Huddleston, Calphotos Image of Salix exigua
Geranium Family (Geraniaceae) Erodium cicutarium
(Redstem filaree)
© Steven Thorsted, 2006, Calphotos Image of Erodium cicutarium
Geranium Family (Geraniaceae) Erodium cicutarium
(Redstem filaree)
© Joseph Berger, Bugwood.org Image of Erodium cicutarium
Geranium Family (Geraniaceae) Erodium cicutarium
(Redstem filaree)
Donovan Craig, National Park Service Image of Erodium cicutarium
Geranium Family (Geraniaceae) Erodium cicutarium
(Redstem filaree)
© Joseph M. DiTomaso, University of California - Davis, Bugwood.org Image of Erodium cicutarium
Geranium Family (Geraniaceae) Erodium cicutarium look-alike:Erodium texanum © Stan Shebs, 2005, Wikimedia Commons Image of Erodium texanum
Spurge family (Euphorbiaceae) Euphorbia esula
(Leafy Spurge)
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Image of Euphorbia esula
Spurge family (Euphorbiaceae) Euphorbia esula
(Leafy Spurge)
Norman E. Rees, USDA Agricultural Research Service - Retired, Bugwood.org Image of Euphorbia esula
Spurge family (Euphorbiaceae) Euphorbia esula
(Leafy Spurge)
Carrie Norman, National Park Service Image of Euphorbia esula
Spurge family (Euphorbiaceae) Euphorbia esula
(Leafy Spurge)
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Image of Euphorbia esula
Spurge family (Euphorbiaceae) Euphorbia esula
(Leafy Spurge)
Norman E. Rees, USDA Agricultural Research Service - Retired, Bugwood.org Image of Euphorbia esula
Verbenaceae (Verbena) Lantana camara
(Common lantana)
© Forest and Kim Starr, Starr Environmental, Bugwood.org Image of Lantana camara
Verbenaceae (Verbena) Lantana camara
(Common lantana)
USDA APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org Image of Lantana camara
Verbenaceae (Verbena) Lantana camara
(Common lantana)
© Rebekah D. Wallace, University of Georgia, Bugwood.org Image of Lantana camara
Verbenaceae (Verbena) Lantana camara
(Common lantana)
© Forest and Kim Starr, Starr Environmental, Bugwood.org Image of Lantana camara
Verbenaceae (Verbena) Lantana camara
(Common lantana)
© Forest and Kim Starr, Starr Environmental, Bugwood.org Image of Lantana camara
Loosestrife family (Lythraceae) Lythrum salicaria
(Purple loosestrife)
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Image of Lythrum salicaria
Loosestrife family (Lythraceae) Lythrum salicaria
(Purple loosestrife)
Rob Routledge, Sault College, Bugwood.org Image of Lythrum salicaria
Loosestrife family (Lythraceae) Lythrum salicaria
(Purple loosestrife)
Joseph M. DiTomaso, University of California - Davis, Bugwood.org Image of Lythrum salicaria
Loosestrife family (Lythraceae) Lythrum salicaria
(Purple loosestrife)
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Image of Lythrum salicaria
Loosestrife family (Lythraceae) Lythrum salicaria look-alike:Lythrum californicum © Robert Sivinski, 2012, Calphotos Image of Lythrum californicum
Loosestrife family (Lythraceae) Lythrum salicaria look-alike:Lythrum californicum © Neal Kramer, 2009, Calphotos Image of Lythrum californicum
Apocynaceae (Dogbane) Nerium oleander
(Oleander)
Carrie Norman, National Park Service Image of Nerium oleander
Apocynaceae (Dogbane) Nerium oleander
(Oleander)
© J©lio Reis, 2005, Wikimedia Commons Image of Nerium oleander
Apocynaceae (Dogbane) Nerium oleander
(Oleander)
Donovan Craig & Carrie Norman, National Park Service Image of Nerium oleander
Apocynaceae (Dogbane) Nerium oleander
(Oleander)
Carrie Norman, National Park Service Image of Nerium oleander
Apocynaceae (Dogbane) Nerium oleander
(Oleander)
Carrie Norman, National Park Service Image of Nerium oleander
Apocynaceae (Dogbane) Nerium oleander
(Oleander)
Carrie Norman, National Park Service Image of Nerium oleander
Solanaceae (Tobacco) Nicotiana glauca
(Tree tobacco)
Carrie Norman, National Park Service Image of Nicotiana glauca
Solanaceae (Tobacco) Nicotiana glauca
(Tree tobacco)
Carrie Norman, National Park Service Image of Nicotiana glauca
Solanaceae (Tobacco) Nicotiana glauca
(Tree tobacco)
Carrie Norman, National Park Service Image of Nicotiana glauca
Solanaceae (Tobacco) Nicotiana glauca
(Tree tobacco)
Carrie Norman, National Park Service Image of Nicotiana glauca
Solanaceae (Tobacco) Nicotiana glauca
(Tree tobacco)
Carrie Norman, National Park Service Image of Nicotiana glauca
Solanaceae (Tobacco) Nicotiana glauca
(Tree tobacco)
Carrie Norman, National Park Service Image of Nicotiana glauca
Arecaceae (Palm) Phoenix dactylifera
(Date palm)
Carrie Norman, National Park Service Image of Phoenix dactylifera
Arecaceae (Palm) Phoenix dactylifera
(Date palm)
Carrie Norman, National Park Service Image of Phoenix dactylifera
Arecaceae (Palm) Phoenix dactylifera
(Date palm)
Carrie Norman, National Park Service Image of Phoenix dactylifera
Arecaceae (Palm) Phoenix dactylifera
(Date palm)
Carrie Norman, National Park Service Image of Phoenix dactylifera
Fabaceae (Pea) Spartium junceum
(Spanish broom)
© Neal Kramer, 2008, Calphotos Image of Spartium junceum
Fabaceae (Pea) Spartium junceum
(Spanish broom)
© Neal Kramer, 2008, Calphotos Image of Spartium junceum
Fabaceae (Pea) Spartium junceum
(Spanish broom)
© Neal Kramer, 2011, Calphotos Image of Spartium junceum
Fabaceae (Pea) Spartium junceum
(Spanish broom)
© Thomas Stoughton, 2009, Calphotos Image of Spartium junceum
Fabaceae (Pea) Spartium junceum
(Spanish broom)
© John M. Randall, The Nature Conservancy, Bugwood.org Image of Spartium junceum
Tamaricaceae (Tamarisk) Tamarix aphylla
(Athel)
© John M. Randall, The Nature Conservancy, Bugwood.org Image of Tamarix aphylla
Tamaricaceae (Tamarisk) Tamarix aphylla
(Athel)
© Forest and Kim Starr, Starr Environmental, Bugwood.org Image of Tamarix aphylla
Tamaricaceae (Tamarisk) Tamarix aphylla
(Athel)
© Forest and Kim Starr, Starr Environmental, Bugwood.org Image of Tamarix aphylla
Tamaricaceae (Tamarisk) Tamarix aphylla
(Athel)
Carrie Norman, National Park Service Image of Tamarix aphylla
Tamaricaceae (Tamarisk) Tamarix aphylla
(Athel)
Carrie Norman, National Park Service Image of Tamarix aphylla
Tamaricaceae (Tamarisk) Tamarix ramosissima
(Tamarisk, Saltcedar)
Carrie Norman, National Park Service Image of Tamarix ramosissima
Tamaricaceae (Tamarisk) Tamarix ramosissima
(Tamarisk, Saltcedar)
Carrie Norman, National Park Service Image of Tamarix ramosissima
Tamaricaceae (Tamarisk) Tamarix ramosissima
(Tamarisk, Saltcedar)
© Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Image of Tamarix ramosissima
Tamaricaceae (Tamarisk) Tamarix ramosissima
(Tamarisk, Saltcedar)
Carrie Norman, National Park Service Image of Tamarix ramosissima
Tamaricaceae (Tamarisk) Tamarix ramosissima
(Tamarisk, Saltcedar)
© Barry Rice, sarracenia.com, Bugwood.org Image of Tamarix ramosissima
Caltrop family (Zygophyllaceae) Tribulus terrestris
(Puncturevine)
Carrie Norman, National Park Service Image of Tribulus terrestris
Caltrop family (Zygophyllaceae) Tribulus terrestris
(Puncturevine)
Carrie Norman, National Park Service Image of Tribulus terrestris
Caltrop family (Zygophyllaceae) Tribulus terrestris
(Puncturevine)
Carrie Norman, National Park Service Image of Tribulus terrestris
Caltrop family (Zygophyllaceae) Tribulus terrestris
(Puncturevine)
Carrie Norman, National Park Service Image of Tribulus terrestris
Caltrop family (Zygophyllaceae) Tribulus terrestris look-alike:Kallstroemia californica © Neal Kramer, 2011, Calphotos Image of Kallstroemia californica
Caltrop family (Zygophyllaceae) Tribulus terrestris look-alike:Kallstroemia californica Carrie Norman, National Park Service Image of Kallstroemia californica
Verbenaceae (Vervain) Vitex agnus-castus
(Lilac Chastetree)
Carrie Norman, National Park Service Image of Vitex agnus-castus
Verbenaceae (Vervain) Vitex agnus-castus
(Lilac Chastetree)
Donovan Craig, National Park Service Image of Vitex agnus-castus
Verbenaceae (Vervain) Vitex agnus-castus
(Lilac Chastetree)
Carrie Norman, National Park Service Image of Vitex agnus-castus
Verbenaceae (Vervain) Vitex agnus-castus
(Lilac Chastetree)
Carrie Norman, National Park Service Image of Vitex agnus-castus
Verbenaceae (Vervain) Vitex agnus-castus
(Lilac Chastetree)
Carrie Norman, National Park Service Image of Vitex agnus-castus
Verbenaceae (Vervain) Vitex agnus-castus look-alike:Lupinus polyphyllus © Vernon Smith, 2010, Calphotos Image of Lupinus polyphyllus
Verbenaceae (Vervain) Vitex agnus-castus look-alike:Lupinus polyphyllus © Louis-M. Landry, 2006, Calphotos Image of Lupinus polyphyllus
Arecaceae (Palm) Washingtonia filifera
(California fan palm)
Carrie Norman, National Park Service Image of Washingtonia filifera
Arecaceae (Palm) Washingtonia filifera
(California fan palm)
Carrie Norman, National Park Service Image of Washingtonia filifera
Arecaceae (Palm) Washingtonia filifera
(California fan palm)
© J. E.(Jed) and Bonnie McClellan, California Academy of Sciences, 2007, Calphotos Image of Washingtonia filifera
Arecaceae (Palm) Washingtonia filifera
(California fan palm)
Carrie Norman, National Park Service Image of Washingtonia filifera
Arecaceae (Palm) Washingtonia filifera
(California fan palm)
Carrie Norman, National Park Service Image of Washingtonia filifera
Arecaceae (Palm) Washingtonia filifera
(California fan palm)
Carrie Norman, National Park Service Image of Washingtonia filifera