Weeds Pages
Common names link to pages with weed descriptions and photos often showing several stages of development.
| Common Name | Scientific Name | Season and Type |
|---|---|---|
| barley, hare (wild barley) | Hordeum leporinum | winter annual grass |
| barnyardgrass | Echinochloa crus-galli | summer annual grass |
| bermudagrass | Cynodon dactylon | perennial grass |
| bindweed, field | Convolvulus arvensis | perennial broadleaf |
| bluegrass, annual | Poa annua | winter or summer annual grass |
| cacti, prickly pear | Opuntia spp. | perennial broadleaf |
| cocklebur | Xanthium strumarium | summer annual broadleaf |
| crabgrasses | Digitaria spp. | summer annual grass |
| dallisgrass | Paspalum dilatatum | perennial grass |
| fescues | Festuca spp. | perennial grass |
| fleabane, hairy | Conyza bonariensis | winter annual broadleaf |
| foxtails (yellow and green) | Setaria spp. | summer annual grass |
| goosefoot, nettleleaf | Chenopodium murale | summer annual broadleaf |
| horseweed (mare's tail) | Conyza canadensis | winter annual broadleaf |
| groundsel, common | Senecio vulgaris | winter or summer annual broadleaf |
| johnsongrass | Sorghum halepense | perennial grass |
| knotweed, common (prostrate knotweed) | Polygonum aviculare | winter or summer annual broadleaf |
| lambsquarters, common | Chenopodium album | summer annual broadleaf |
| lettuce, prickly | Lactuca serriola | summer annual broadleaf |
| mallow, little (cheeseweed) | Malva parviflora | winter annual broadleaf |
| mustards | Brassica spp. | winter annual broadleaf |
| nettles | Urtica spp. | winter or summer annual broadleaf |
| nightshades | Solanum spp. | summer annual broadleaf |
| nutsedges | Cyperus spp. | perennial sedge |
| oat, wild | Avena fatua | winter annual grass |
| pigweeds | Amaranthus spp. | summer annual broadleaf |
| puncturevine | Tribulus terrestris | summer annual broadleaf |
| purslane, common | Portulaca oleracea | summer annual broadleaf |
| ryegrasses | Lolium spp. | winter annual grass |
| sandbur, longspine | Cenchrus longispinus | summer annual grass |
| sowthistle, annual | Sonchus oleraceus | winter or summer annual broadleaf |
| sprangletop, bearded | Leptochloa fascicularis | summer annual grass |
| spurge, creeping | Euphorbia serpens | summer annual broadleaf |
| spurge, spotted | Euphorbia maculata | summer annual broadleaf |
| starthistle, yellow | Centaurea solstitialis | summer annual broadleaf |
| stinkgrasses (lovegrasses) | Eragrostis spp. | summer annual grass |
| thistle, Russian | Salsola tragus | summer annual broadleaf |
| velvetleaf | Abutilon theophrasti | summer annual broadleaf |
| wild cucumber | Marah spp. | perennial broadleaf |
| witchgrass | Panicum capillare | summer annual grass |