CAHNRS > Hortsense > Weeds > Weed Photo Gallery > Weed Photo Gallery (Sh-Z) Weed Photo Gallery (Sh-Z) Select a photo below to view associated weed fact sheet. Shepherd’s purse – Yellow nutsedge Weeds: Shepherd’s-purse – Capsella bursa-pastoris Weeds: Smartweeds – Polygonum spp. Weeds: Sowthistle, annual and perennial – Sonchus oleraceus, Sonchus arvensis Weeds: Speedwells – Veronica spp. Weeds: Spurges (Prostrate spurges) – Chamaesyce spp. (Euphorbia spp.) Weeds: Stinging nettle – Urtica dioica Weeds: St. Johnswort, common (Goatweed, Klamathweed) – Hypericum perforatum Weeds: Tansy ragwort – Senecio jacobaea Weeds: Tumblemustard (Jim Hill mustard) – Sisymbrium altissimum Weeds: Velvetgrass (Common velvetgrass) – Holcus lanatus Weeds: Velvetleaf – Abutilon theophrasti Weeds: Water primrose – Ludwigia uruguayensis (L. hexapetala) Weeds: Waterhemlock, western – Cicuta douglasii Weeds: Wild carrot (Queen Anne’s lace) – Daucus carota Weeds: Yellow nutsedge – Cyperus esculentus Weed Gallery A to B C to E F to H I to Po Pr to Sc Sh to Z