Weed Herbarium – by Scientific Name
Saponaria officinalis | bouncing bet | Caryophyllaceae - Pink Family |
Schizachyrium scoparium | see - Andropogon scoparius |
Scleranthus annuus | knawel | Caryophyllaceae - Pink Family |
Scrophularia nodosa | common figwort | Scrophulariaceae - Figwort Family |
Senecio jacobaea | tansy ragwort | Asteraceae (Compositae) - Aster or Sunflower Family |
Senecio vulgaris | common groundsel | Asteraceae (Compositae) - Aster or Sunflower Family |
Setaria lutescens | see - Setaria glauca | |
Setaria faberi | giant foxtail | Poaceae (Graminae) - Grass Family |
Setaria glauca | yellow foxtail | Poaceae (Graminae) - Grass Family |
Sicyos angulatus | burcucumber | Cucurbitaceae - Gourd Family |
Silene cucubalus | see - Silene vulgaris | |
Silene alba | white cockle | Caryophyllaceae - Pink Family |
Silene vulgaris | bladder campion | Caryophyllaceae - Pink Family |
Silphium perfoliatum | cup plant | Asteraceae (Compositae) - Aster or Sunflower Family |
Sinapis arvensis | see - Brassica kaber |
Sisymbrium officinale | hedge mustard | Brassicaceae (Cruciferae) - Mustard Family |
Smilax herbacea | carrion flower | Smilacaceae - Catbrier Family |
Solanum carolinense | horsenettle | Solanaceae - Nightshade Family |
Solanum dulcamara | bittersweet nightshade | Solanaceae - Nightshade Family |
Solanum ptycanthum | eastern black nightshade | Solanaceae - Nightshade Family |
Solidago canadensis | Canada goldenrod | Asteraceae (Compositae) - Aster or Sunflower Family |
Solidago graminifolia | narrowleaf goldenrod | Asteraceae (Compositae) - Aster or Sunflower Family |
Solidago sempervirens | seashore goldenrod | Asteraceae (Compositae) - Aster or Sunflower Family |
Sonchus arvensis | perennial sowthistle | Asteraceae (Compositae) - Aster or Sunflower Family |
Sonchus asper | spiny sowthistle | Asteraceae (Compositae) - Aster or Sunflower Family |
Sonchus oleraceus | annual sowthistle | Asteraceae (Compositae) - Aster or Sunflower Family |
Sorghastrum nutans | yellow Indiangrass | Poaceae (Graminae) - Grass Family |
Sorghum halepense | Johnson grass | Poaceae (Graminae) - Grass Family |
Spergularia rubra | red sandspurry | Caryophyllaceae - Pink Family |
Stellaria graminifolia | see - Stellaria graminea | |
Stellaria graminea | little starwort | Caryophyllaceae - Pink Family |
Stellaria media | common chickweed | Caryophyllaceae - Pink Family |
Symplocarpus foetidus | common skunk cabbage | Araceae - Arum Family |
Tanacetum vulgare | tansy | Asteraceae (Compositae) - Aster or Sunflower Family |
Taraxacum officinale | dandelion | Asteraceae (Compositae) - Aster or Sunflower Family |
Thalictrum pubescens | see - Thalictrum polygamum | |
Thalictrum polygamum | tall meadow rue | Ranunculaceae - Buttercup Family |
Thlaspi arvense | field pennycress | Brassicaceae (Cruciferae) - Mustard Family |
Tovara virginiana | Virginia knotweed | Polygonaceae - Smartweed or Buckwheat Family |
Toxicodendron radicans | poison ivy | Anacardiaceae - Cashew Family |
Tragopogon dubius | yellow salsify | Asteraceae (Compositae) - Aster or Sunflower Family |
Trichostema dichotomum | bluecurls | Lamiaceae (Labiatae) - Mint Family |
Tridens flavus | purpletop | Poaceae (Graminae) - Grass Family |
Trifolium arvense | rabbitfoot clover | Fabaceae (Leguminosae) - Pea or Bean Family |
Trifolium hybridum | alsike clover | Fabaceae (Leguminosae) - Pea or Bean Family |
Trifolium pratense | red clover | Fabaceae (Leguminosae) - Pea or Bean Family |
Trifolium repens | white clover | Fabaceae (Leguminosae) - Pea or Bean Family |
Triodanis perfoliata | Venus lookingglass | Campanulaceae - Bluebell Family |
Triodia flava flavus | see - Tridens flavus |
Tussilago farfara | coltsfoot | Asteraceae (Compositae) - Aster or Sunflower Family |