Grand Canyon National Park (Arizona)


55 Species

Subject Name Scientific Name Family Nativity
Canada thistle Cirsium arvense (L.) Scop. Asteraceae Exotic
tree-of-heaven Ailanthus altissima (P. Mill.) Swingle Simaroubaceae Exotic
giant reed Arundo donax L. Poaceae Exotic
musk thistle Carduus nutans L. Asteraceae Exotic
spotted knapweed Centaurea stoebe ssp. micranthos (Gugler) Hayek Asteraceae Exotic
Russian olive Elaeagnus angustifolia L. Elaeagnaceae Exotic
johnsongrass Sorghum halepense (L.) Pers. Poaceae Exotic
common mullein Verbascum thapsus L. Scrophulariaceae Exotic
bull thistle Cirsium vulgare (Savi) Ten. Asteraceae Exotic
Siberian elm Ulmus pumila L. Ulmaceae Exotic
dandelion Taraxacum officinale G.H. Weber ex Wiggers Asteraceae Native
date palm Phoenix dactylifera L. Arecaceae Exotic
puncturevine Tribulus terrestris L. Zygophyllaceae Exotic
field bindweed Convolvulus arvensis L. Convolvulaceae Exotic
Mediterranean sage Salvia aethiopis L. Lamiaceae Exotic
poison-hemlock Conium maculatum L. Apiaceae Exotic
yellow starthistle Centaurea solstitialis L. Asteraceae Exotic
rush skeletonweed Chondrilla juncea L. Asteraceae Exotic
Scotch thistle Onopordum acanthium L. Asteraceae Exotic
diffuse knapweed Centaurea diffusa Lam. Asteraceae Exotic
jointed goatgrass Aegilops cylindrica Host Poaceae Exotic
camelthorn Alhagi maurorum Medik Fabaceae (Leguminosae) Exotic
field brome Bromus arvensis L. Poaceae Exotic
ripgut brome Bromus diandrus Roth Poaceae Exotic
smooth brome Bromus inermis Leyss. Poaceae Exotic
red brome Bromus rubens L. Poaceae Exotic
cheatgrass Bromus tectorum L. Poaceae Exotic
African mustard Brassica tournefortii Gouan Brassicaceae Exotic
nettleleaf goosefoot Chenopodium murale L. Chenopodiaceae Exotic
horseweed Conyza canadensis (L.) Cronq. Asteraceae Native
Uruguayan pampas grass Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn. Poaceae Exotic
houndstongue Cynoglossum officinale L. Boraginaceae Exotic
barnyardgrass Echinochloa crus-galli (L.) Beauv Poaceae Exotic
quackgrass Elymus repens (L.) Gould Poaceae Exotic
redstem filaree Erodium cicutarium (L.) L'Hér. ex Ait. Geraniaceae Exotic
prickly lettuce Lactuca serriola L. Asteraceae Exotic
perennial pepperweed Lepidium latifolium L. Brassicaceae Exotic
oxeye daisy Leucanthemum vulgare Lam. Asteraceae Exotic
Dalmatian toadflax Linaria dalmatica (L.) P. Mill. Scrophulariaceae Exotic
white horehound Marrubium vulgare L. Lamiaceae Exotic
yellow sweet-clover Melilotus officinalis (L.) Lam. Fabaceae (Leguminosae) Exotic
timothy Phleum pratense L. Poaceae Exotic
red sorrel Rumex acetosella L. Polygonaceae Exotic
Himalayan blackberry Rubus armeniacus Focke Rosaceae Exotic
Russian-thistle Salsola tragus L. Chenopodiaceae Exotic
tumble mustard Sisymbrium altissimum L. Brassicaceae Exotic
London rocket Sisymbrium irio L. Brassicaceae Exotic
spiny sowthistle Sonchus asper (L.) Hill Asteraceae Exotic
annual sowthistle Sonchus oleraceus L. Asteraceae Exotic
Athel tamarisk Tamarix aphylla (L.) Karst. Tamaricaceae Exotic
saltcedar Tamarix ramosissima Ledeb. Tamaricaceae Exotic
annual yellow sweetclover Melilotus indicus (L.) All. Fabaceae (Leguminosae) Exotic
ravennagrass Ripidium ravennae (L.) Trinius Poaceae Exotic
shiny bugseed Corispermum nitidum Kit. ex J.A. Schultes Chenopodiaceae Exotic
mouse barley Hordeum murinum L. Poaceae Exotic