Index of plants by genus
| Species | Common Name | Family |
| Baptisia alba | White Wild Indigo | Leguminosae |
| Baptisia australis | Blue Wild Indigo | Leguminosae |
| Berula erecta | Cutleaf Water Parsnip | Apiaceae |
| Betula papyrifera | Paper Birch | Betulaceae |
| Betula pumila | Dwarf Birch | Betulaceae |
| Betula nigra | River Birch | Betulaceae |
| Bidens cernua* | Nodding Bur Marigold | Asteraceae |
| Bidens coronata* | Tall Swamp Marigold | Asteraceae |
| Bidens frondosa* | Common Beggar's Ticks | Asteraceae |
| Botrychium dissectum* | Cutleaf grapefern | Ophioglossaceae |
| Bouteloua curtipendula | Side-oats | Poaceae |
| Brasenia schreberi | Watershield | Cabombaceae |
| Bromus kalmii* | Hairy Brome | Poaceae |
© 2004 Michael Hough