Weed Herbarium
Welcome to the UMass Extension Weed Herbarium! Weeds in the herbarium can be viewed by common name, scientific name, or plant family by using the menu tabs below. Images and notes to aid in identification are revealed by clicking on the weed name. For questions and permission to use photos contact Randy Prostak; rprostak@umext.umass.edu.
| Common Name | Scientific Name | Family Name | |
|---|---|---|---|
| salsify, yellow | Tragopogon dubius | Asteraceae (Compositae) - Aster or Sunflower Family | |
| sandbur, longspine | Cenchrus longispinus | Poaceae - Grass Family | |
| sandspurry, red | Spergularia rubra | Caryophyllaceae - Pink Family | |
| sandwort, thymeleaf | Arenaria serpyllifolia | Caryophyllaceae - Pink Family | |
| scouring rush | Equisetum hyemale | Equisetaceae - Horsetail Family | |
| selfheal | see - healall | ||
| shepherd's-purse | Capsella bursa-pastoris | Brassicaceae (Cruciferae) - Mustard Family | |
| showy tick-trefoil | see - hoary tickclove | ||
| silvergrass, amur | Miscanthus sacchariflorus | Poaceae - Grass Family | |
| skunk-cabbage, common | Symplocarpus foetidus | Araceae - Arum Family | |
| smartweed, hedge | Polygonum scandens | Polygonaceae - Smartweed or Buckwheat Family | |
| smartweed, ladysthumb | Polygonum persicaria | Polygonaceae - Smartweed or Buckwheat Family | |
| smartweed, Pennsylvania | Polygonum pensylvanicum | Polygonaceae - Smartweed or Buckwheat Family | |
| snakeroot, white | Eupatorium rugosum | Asteraceae (Compositae) - Aster or Sunflower Family | |
| snapdragon, wild | see - toadflax, wild | ||
| soapwort | see - bouncingbet | ||
| sorrel, field | see - sorrel, red | ||
| sorrel, red | Rumex acetosella | Polygonaceae - Smartweed or Buckwheat Family | |
| sorrel, sheep | see - sorrel, red | ||
| sourgrass | see - woodsorrel, creeping | ||
| sourgrass | see - woodsorrel, yellow | ||
| sourgrass | see - sorrel, red | ||
| sowthistle, annual | Sonchus oleraceus | Asteraceae (Compositae) - Aster or Sunflower Family | |
| sowthistle, common | see - sowthistle, annual | ||
| sowthistle, common | see - sowthistle, annual | ||
| sowthistle, creeping | see - sowthistle, perennial | ||
| sowthistle, field | see - sowthistle, perennial | ||
| sowthistle, perennial | Sonchus arvensis | Asteraceae (Compositae) - Aster or Sunflower Family | |
| sowthistle, spiny | Sonchus asper | Asteraceae (Compositae) - Aster or Sunflower Family | |
| sowthistle, spiny-leaved | see - sowthistle, spiny | ||
| speargrass | see - bluegrass, annual | ||
| speedwell, common | Veronica officinalis | Scrophulariaceae - Figwort Family | |
| speedwell, corn | Veronica arvensis | Scrophulariaceae - Figwort Family | |
| speedwell, ivyleaf | Veronica hederifolia | Scrophulariaceae - Figwort Family | |
| speedwell, purslane | Veronica peregrina | Scrophulariaceae - Figwort Family | |
| speedwell, thymeleaf | Veronica serpyllifolia | Scrophulariaceae - Figwort Family | |
| springbeauty, narrowleaf | Claytonia virginica | Portulacaceae - Purslane Family | |
| springbeauty, Virginia | see - narrowleaf springbeauty | ||
| spurge, cypress | Euphorbia cyparissias | Euphorbiaceae - Spurge Family | |
| spurge, Hungarian | see - spurge, leafy | ||
| spurge, leafy | Euphorbia esula | Euphorbiaceae - Spurge Family | |
| spurge, prostrate | see - spurge, spotted | ||
| spurge, spotted | Euphorbia maculata | Euphorbiaceae - Spurge Family | |
| St. Johnswort | Hypericum perforatum | Hyperiacaceae - St. Johnswort Family | |
| staghorn | see - sumac, staghorn | ||
| star-of-bethlehem | Ornithogalum umbellatum | Liliaceae - Lily Family | |
| starweed | see - chickweed, common | ||
| starwort | see - chickweed, common | ||
| sticklewort | see - agrimony | ||
| stickseed, Virginia | see - beggarslice |
