Weed Herbarium – by Scientific Name
| Typha latifolia | common cattail | Typhaceae - Cattail Family |
| Urtica dioica | stinging nettle | Urticaceae - Nettle Family |
| Valeriana officinalis | common valerian | Valerianaceae - Valerian Family |
| Veratrum viride | green false hellebore | Liliaceae - Lily Family |
| Veratum viride | green false hellebore | Liliaceae - Lily Family |
| Verbascum thapsus | common mullein | Scrophulariaceae - Figwort Family |
| Verbena bracteosa | see - Verbena bracteata | |
| Verbena bracteata | prostrate vervain | Verbenaceae - Verbena Family |
| Verbena hastata | blue vervain | Verbenaceae - Verbena Family |
| Verbena urticifolia | white vervain | Verbenaceae - Verbena Family |
| Verbesina alternifolia | wingstem | Asteraceae (Compositae) - Aster or Sunflower Family |
| Veronica arvensis | corn speedwell | Scrophulariaceae - Figwort Family |
| Veronica hederifolia | ivy leaf speedwell | Scrophulariaceae - Figwort Family |
| Veronica officinalis | common speedwell | Scrophulariaceae - Figwort Family |
| Veronica peregrina | purslane speedwell | Scrophulariaceae - Figwort Family |
| Veronica serpyllifolia | thymeleaf speedwell | Scrophulariaceae - Figwort Family |
| Vicia cracca | bird vetch | Fabaceae (Leguminosae) - Pea or Bean Family |
| Vincetoxicum nigrum | see - Cynanchum nigrum | |
| Vincetoxicum rossicum | see - Cynanchum rossicum |
| Viola arvensis | field violet | Violaceae - Violet Family |
| Viola papilionacea | common blue violet | Violaceae - Violet Family |
| Vitis spp. | wild grape | Vitaceae - Grape Family |
| Washingtonia claytoni | see - Osmorhiza claytoni | |
| Washingtonia longistylis | see - Osmorhiza longistilis |
| Xanthium strumarium | cocklebur | Asteraceae (Compositae) - Aster or Sunflower Family |
| Zizia aurea | golden alexanders | Apiaceae (Umbelliferae) - Carrot Family |
| Zoysia japonica | Japanese lawngrass | Poaceae (Graminae) - Grass Family |