UMass Extension Weed Herbarium
| Common Name | Scientific Name | Family Name | |
|---|---|---|---|
| burnweed, American | see - pilewort | ||
| bush clover, slender | Lespedeza virginica | Fabaceae (Leguminosae) - Pea or Bean Family | |
| butter-and-eggs | see - toadflax, yellow | ||
| butterbur-dock | see - butterburdock | ||
| butterburdock | Petasites hybridus | Asteraceae (Compositae) - Aster or Sunflower Family | |
| buttercup, bulbous | Ranunculus bulbosus | Ranunculaceae - Buttercup Family | |
| buttercup, common | see - buttercup, tall | ||
| buttercup, creeping | Ranunculus repens | Ranunculaceae - Buttercup Family | |
| buttercup, fig | see - celadine, lesser | ||
| buttercup, kidney-leaved | see - buttercup, smallflower | ||
| buttercup, meadow | see - buttercup, tall | ||
| buttercup, smallflower | Ranunculus abortivus | Ranunculaceae - Buttercup Family | |
| buttercup, tall | Ranunculus acris | Ranunculaceae - Buttercup Family | |
| butterprint | see - velvetleaf | ||
| buttonweed | see - velvetleaf |