Weeds Pages
Common names link to pages with weed descriptions and photos often showing several stages of development.
| Common Name | Scientific Name |
|---|---|
| barley, hare | Hordeum leporinum |
| barnyardgrass | Echinochloa crus-galli |
| bassia, fivehook | Bassia hyssopifolia |
| bindweed, field | Convolvulus arvensis |
| bluegrass, annual | Poa annua |
| brome, ripgut | Bromus diandrus |
| burclover, California | Medicago polymorpha |
| buttercup, crowfoot | Ranunculus sceleratus |
| canarygrass, hood | Phalaris paradoxa |
| canarygrass, littleseed | Phalaris minor |
| chamomile, mayweed | Anthemis cotula |
| chickweed, common | Stellaria media |
| fiddleneck, coast | Amsinckia menziesii var. intermedia |
| filarees | Erodium spp. |
| foxtails (yellow and green) | Setaria spp. |
| goatgrass, jointed | Aegilops cylindrica |
| goosefoot, nettleleaf | Chenopodium murale |
| groundsel, common | Senecio vulgaris |
| henbit | Lamium amplexicaule |
| johnsongrass | Sorghum halepense |
| knotweed, prostrate | Polygonum aviculare |
| kochia | Kochia scoparia |
| ladysthumb | Polygonum persicaria |
| lambsquarters, common | Chenopodium album |
| lettuce, prickly | Lactuca serriola |
| mallow, little (cheeseweed) | Malva parviflora |
| milkthistle | Silybum marianum |
| miner's lettuce | Claytonia perfoliata |
| mustards | Brassica spp. |
| nettle, burning | Urtica urens |
| nutsedge, yellow | Cyperus esculentus |
| oat, wild | Avena fatua |
| oxtongue, bristly | Picris echioides |
| pigweed, redroot | Amaranthus retroflexus |
| pimpernel, scarlet | Anagallis arvensis |
| pineapple-weed | Chamomilla suaveolens |
| polypogon, rabbitfoot | Polypogon monspeliensis |
| radish, wild | Raphanus raphanistrum |
| redmaids (desert rockpurslane) | Calandrinia ciliata |
| rocket, London | Sisymbrium irio |
| ryegrass, Italian | Lolium multiflorum |
| shepherd's-purse | Capsella bursa-pastoris |
| smartweed, pale | Polygonum lapathofolium |
| sowthistle, annual | Sonchus oleraceus |
| sowthistle, spiny | Sonchus asper |
| spurge, prostrate | Chamaesyce humistrata |
| spurry, corn | Spergula arvensis |
| starthistle, yellow | Centaurea solstitialis |
| stickleafs | Mentzelia spp. |
| sunflowers | Helianthus spp. |
| tarweed, coast | Hemizonia corymbosa |
| tarweed, hayfield | Hemizonia congesta |
| thistle, Russian | Salsola tragus |