Baby white aster. 158
Baptisia australis var. minor. 199
Bastard toadflax. 76
Beggarticks. 193
Beggarticks. 194
Bidens cernua . 135
Bidens comosa. 193
Bidens frondosa . 192
Bidens vulgata. 194
Bigbract verbena. 86
Black medic . 259
Black Nightshade . 65
Black sampson echinacea. 154
Blazing star . 190
Blue false indigo. 199
Blue verbena. 87
Bractless mentzelia. 122
Broadleaf milkweed. 107
Broom snakeweed. 144
Buffalo gourd. 92
Buffalo-burr nightshade. 88
Bull thistle . 197
Bush morning-glory. 98