| annual bluegrass |
Poa annua |
3 |
| annual false-brome |
Brachypodium distachyon |
3 |
| Arabian schismus |
Schismus arabicus |
3 |
| Australian chess |
Bromus arenarius |
2 |
| Australian fingergrass |
Chloris truncata |
3 |
| bahiagrass |
Paspalum notatum |
1 |
| barb goatgrass |
Aegilops triuncialis |
4 |
| barnyardgrass |
Echinochloa crus-galli |
3 |
| bermudagrass |
Cynodon dactylon |
1 |
| big quakinggrass |
Briza maxima |
3 |
| blue panicum |
Panicum antidotale |
3 |
| bristly foxtail |
Setaria verticillata |
3 |
| buffelgrass |
Pennisetum ciliare |
3 |
| bulbous bluegrass |
Poa bulbosa |
5 |
| bulbous canarygrass |
Phalaris aquatica |
3 |
| California brome |
Bromus carinatus |
3 |
| California cordgrass |
Spartina foliosa |
3 |
| California false-hellebore |
Veratrum californicum |
3 |
| Canada bluegrass |
Poa compressa |
3 |
| Canary Island date palm |
Phoenix canariensis |
2 |
| canarygrass |
Phalaris canariensis |
3 |
| carpetgrass |
Axonopus fissifolius |
2 |
| cereal rye |
Secale cereale |
4 |
| cheatgrass |
Bromus tectorum |
4 |
| Chilean rabbitsfoot grass |
Polypogon australis |
1 |
| Chinese silvergrass |
Miscanthus sinensis |
3 |
| cockspur grass |
Echinochloa spp. |
1 |
| colonial bentgrass |
Agrostis capillaris |
1 |
| common cordgrass |
Spartina anglica |
2 |
| common mediterraneangrass |
Schismus barbatus |
4 |
| common reed |
Phragmites australis |
2 |
| common velvetgrass |
Holcus lanatus |
3 |
| cordgrass |
Spartina spp. |
2 |
| crabgrass |
Digitaria spp. |
1 |
| creeping bentgrass |
Agrostis stolonifera |
3 |
| crested dogtailgrass |
Cynosurus cristatus |
1 |
| crimson fountaingrass |
Pennisetum setaceum |
6 |
| crowfootgrass |
Dactyloctenium aegyptium |
2 |
| dallisgrass |
Paspalum dilatatum |
4 |
| denseflower cordgrass |
Spartina densiflora |
4 |
| desert lovegrass |
Eragrostis pectinacea var. miserrima |
4 |
| Douglas iris |
Iris douglasiana |
4 |
| early watergrass |
Echinochloa oryzoides |
4 |
| European beachgrass |
Ammophila arenaria |
4 |
| fall panicum |
Panicum dichotomiflorum |
3 |
| feather fingergrass |
Chloris virgata |
3 |
| feathertop |
Pennisetum villosum |
3 |
| field brome |
Bromus arvensis |
3 |
| field sandbur |
Cenchrus spinifex |
3 |
| fowl bluegrass |
Poa palustris |
1 |
| foxtail barley |
Hordeum jubatum |
3 |
| foxtail pricklegrass |
Crypsis alopecuroides |
3 |
| Fremont's deathcamas |
Zigadenus fremontii |
2 |
| giant foxtail |
Setaria faberi |
2 |
| giant reed |
Arundo donax |
7 |
| goosegrass |
Eleusine indica |
3 |
| green foxtail |
Setaria viridis |
2 |
| green kyllinga |
Kyllinga brevifolia |
2 |
| hardgrass |
Sclerochloa dura |
3 |
| hedgehog dogtailgrass |
Cynosurus echinatus |
4 |
| hood canarygrass |
Phalaris paradoxa |
3 |
| Italian ryegrass |
Festuca perennis |
1 |
| johnsongrass |
Sorghum halepense |
5 |
| jointed goatgrass |
Aegilops cylindrica |
4 |
| junglerice |
Echinochloa colona |
1 |
| Kentucky bluegrass |
Poa pratensis |
5 |
| kikuyugrass |
Pennisetum clandestinum |
3 |
| knotgrass |
Paspalum distichum |
5 |
| large crabgrass |
Digitaria sanguinalis |
4 |
| late barnyard grass |
Echinochloa oryzicola |
3 |
| Lehmann lovegrass |
Eragrostis lehmanniana |
4 |
| leporinum barley |
Hordeum murinum ssp. leporinum |
3 |
| little lovegrass |
Eragrostis minor |
4 |
| little quakinggrass |
Briza minor |
3 |
| littleseed canarygrass |
Phalaris minor |
4 |
| longflowered veldtgrass |
Ehrharta longiflora |
1 |
| longspine sandbur |
Cenchrus longispinus |
2 |
| meadow deathcamas |
Zigadenus venenosus var. venenosus |
2 |
| meadow foxtail |
Alopecurus pratensis |
3 |
| Mediterranean lovegrass |
Eragrostis barrelieri |
5 |
| medusahead |
Taeniatherum caput-medusae |
4 |
| Mexican lovegrass |
Eragrostis mexicana ssp. virescens |
4 |
| nimblewill |
Muhlenbergia schreberi |
4 |
| nit grass |
Gastridium phleoides |
3 |
| oat |
Avena sativa |
2 |
| onionweed |
Asphodelus fistulosus |
2 |
| orchardgrass |
Dactylis glomerata |
4 |
| Pacific bentgrass |
Agrostis avenacea |
3 |
| Pacific rush |
Juncus effusus var. pacificus |
1 |
| panic veldtgrass |
Ehrharta erecta |
3 |
| perennial ryegrass |
Lolium perenne |
3 |
| perennial veldtgrass |
Ehrharta calycina |
4 |
| poison ryegrass |
Lolium temulentum |
3 |
| poverty brome |
Bromus sterilis |
2 |
| prairie cupgrass |
Eriochloa contracta |
5 |
| punagrass |
Achnatherum brachychaetum |
3 |
| purple nutsedge |
Cyperus rotundus |
4 |
| purple pampasgrass |
Cortaderia jubata |
5 |
| rabbitfoot polypogon |
Polypogon monspeliensis |
4 |
| rattlesnake brome |
Bromus briziformis |
3 |
| ravennagrass |
Ripidium ravennae |
4 |
| redroot flatsedge |
Cyperus erythrorhizos |
2 |
| reed canarygrass |
Phalaris arundinacea |
3 |
| rescuegrass |
Bromus catharticus |
4 |
| rhodesgrass |
Chloris gayana |
1 |
| rigid ryegrass |
Lolium rigidum |
1 |
| ripgut brome |
Bromus diandrus |
2 |
| Rocky Mountain iris |
Iris missouriensis |
2 |
| rough barnyardgrass |
Echinochloa muricata |
3 |
| roughstalk bluegrass |
Poa trivialis |
1 |
| saltgrass |
Distichlis spicata |
4 |
| saltmeadow cordgrass |
Spartina patens |
1 |
| slender false garlic |
Nothoscordum gracile |
4 |
| slender oat |
Avena barbata |
3 |
| smallflower umbrella sedge |
Cyperus difformis |
1 |
| smilograss |
Piptatherum miliaceum |
4 |
| smooth barley |
Hordeum murinum ssp. glaucum |
1 |
| smooth brome |
Bromus inermis |
4 |
| smooth cordgrass |
Spartina alterniflora |
2 |
| smooth crabgrass |
Digitaria ischaemum |
3 |
| smutgrass |
Sporobolus indicus |
4 |
| soft brome |
Bromus hordeaceus |
2 |
| sorghum |
Sorghum bicolor |
3 |
| southern sandbur |
Cenchrus echinatus |
1 |
| southwestern cupgrass |
Eriochloa acuminata |
4 |
| spreading rush |
Juncus patens |
2 |
| squirreltail fescue |
Vulpia bromoides |
2 |
| St. Augustinegrass |
Stenotaphrum secundatum |
1 |
| sterile oat |
Avena sterilis |
1 |
| stinkgrass |
Eragrostis cilianensis |
4 |
| swamp pricklegrass |
Crypsis schoenoides |
2 |
| sweet vernalgrass |
Anthoxanthum odoratum |
4 |
| tall fescue |
Festuca arundinacea |
4 |
| tall flatsedge |
Cyperus eragrostis |
3 |
| tanglehead |
Heteropogon contortus |
4 |
| three-cornered leek |
Allium triquetrum |
2 |
| threespike goosegrass |
Eleusine tristachya |
3 |
| toad rush |
Juncus bufonius |
4 |
| Uruguayan pampas grass |
Cortaderia selloana |
3 |
| vaseygrass |
Paspalum urvillei |
1 |
| Washington fan palm |
Washingtonia robusta |
3 |
| water-bent |
Polypogon viridis |
2 |
| weedy brome |
Bromus alopecuros |
3 |
| weeping lovegrass |
Eragrostis curvula |
4 |
| white garlic |
Allium neapolitanum |
2 |
| whiteedge flatsedge |
Cyperus flavicomus |
2 |
| wild garlic |
Allium vineale |
1 |
| wild oat |
Avena fatua |
2 |
| wild-proso millet |
Panicum miliaceum |
3 |
| witchgrass |
Panicum capillare |
3 |
| yellow foxtail |
Setaria pumila |
2 |
| yellow nutsedge |
Cyperus esculentus |
4 |
| yellowflag iris |
Iris pseudacorus |
4 |
