clevelandii) coast plantain (Plantago bigelovii) Cochise beardtongue (Penstemon dasyphyllus) common plantain (Plantago major) common snapdragon (Antirrhinum majus) coral plant (Russelia polyedra) creeping water hyssop (Bacopa repens) desert Indianwheat (Plantago ovata) dog's mouth (Pseudorontium cyathiferum) Fendler's penstemon (Penstemon fendleri) ghost flower (Mohavea confertiflora) gilia beardtongue (Penstemon ambiguus) hackberry beardtongue (Penstemon subulatus) hairy purslane speedwell (Veronica peregrina) harlequin spiralseed (Schistophragma intermedia) heartleaf keckiella (Keckiella cordifolia) island bush snapdragon (Galvezia speciosa) James' beardtongue (Penstemon jamesii) Mexican plantain (Plantago australis) narrowleaf plantain (Plantago lanceolata) Parry's beardtongue (Penstemon parryi) pineneedle beardtongue (Penstemon pinifolius) redseed plantain (Plantago rhodosperma) rock penstemon (Penstemon baccharifolius) Rocky Mountain penstemon (Penstemon strictus) royal penstemon (Penstemon spectabilis) saltmeadow plantain (Plantago argyrea) scarlet bugler (Penstemon centranthifolius) snapdragon vine (Maurandya antirrhiniflora) Sonoran beardtongue (Penstemon stenophyllus) superb beardtongue (Penstemon superbus) Texas toadflax (Nuttallanthus texanus) Thurber's penstemon (Penstemon thurberi) twining snapdragon (Antirrhinum filipes) violet snapdragon (Sairocarpus nuttallianus) Virginia plantain (Plantago virginica) water hyssop (Bacopa monnieri) Watson's snapdragon (Sairocarpus watsonii) whitemargin beardtongue (Penstemon albomarginatus) whitewoolly twintip (Stemodia durantifolia) woolly plantain (Plantago patagonica) Wright penstemon (Penstemon wrightii) yellow bush penstemon (Keckiella antirrhinoides) Platanaceae Arizona sycamore (Platanus wrightii) California sycamore (Platanus racemosa) Plumbaginaceae Cape plumbago (Plumbago auriculata) doctorbush (Plumbago scandens) marsh rosemary (Limonium californicum) Poaceae African lovegrass (Eragrostis echinochloidea) Alamos grama (Bouteloua alamosana) alkali sacaton (Sporobolus airoides) Amazon sprangletop (Leptochloa panicoides) Angleton bluestem (Dichanthium aristatum) annual bluegrass (Poa annua) annual canarygrass (Phalaris canariensis) annual muhly (Muhlenbergia minutissima) annual rabbitsfoot grass (Polypogon monspeliensis) Arabian schismus (Schismus arabicus) Arizona bristlegrass (Setaria arizonica) Arizona brome (Bromus carinatus) Arizona cottontop (Digitaria californica) Arizona muhly (Muhlenbergia arizonica) Arizona signalgrass (Urochloa arizonica) Arizona threeawn (Aristida arizonica) Arizona wheatgrass (Elymus arizonicus) arrocillo (Paspalum paniculatum) Asian crabgrass (Digitaria bicornis) bahiagrass (Paspalum notatum) bamboo muhly (Muhlenbergia dumosa) barnyard grass (Echinochloa crus-galli) basketgrass (Oplismenus hirtellus) bearded cupgrass (Eriochloa aristata) beardless rabbitsfoot grass (Polypogon viridis) big bluestem (Andropogon gerardi) Bigelow's bluegrass (Poa bigelovii) big galleta (Pleuraphis rigida) big sacaton (Sporobolus wrightii) black grama (Bouteloua eriopoda) blackseed crabgrass (Digitaria ternata) black spear grass (Heteropogon contortus) blue grama (Bouteloua gracilis) blue panicum (Panicum antidotale) bristly wolfstail (Lycurus setosus) broadleaf carpetgrass (Axonopus compressus) browntop signalgrass (Urochloa fusca) bulb panicgrass (Panicum bulbosum) bullgrass (Muhlenbergia emersleyi) bur bristlegrass (Setaria adhaerens) Burmann's basketgrass (Oplismenus burmannii) burrograss (Scleropogon brevifolius) buryseed umbrellagrass (Enteropogon chlorideus) bush muhly (Muhlenbergia porteri) California satintail (Imperata brevifolia) California threeawn (Aristida californica) cane bluestem (Bothriochloa barbinodis) canyon cupgrass (Eriochloa lemmonii) carricillo de la sierra (Lasiacis procerrima) cattail grass (Setaria pumila) cheatgrass (Bromus tectorum) Chihuahuan