Bell heather 
Bird's-eye primrose 
Black crowberry 
Black Highbush Blueberry 
Black huckleberry 
Blue Phlox 
Blue pimpernel 
Blue pimpernel 
Blue Ridge Blueberry 
Bluehead Gilia 
Blunt-leaf heath 
Bog Labrador tea 
Bog laurel 
Bog Rosemary 
Bog Wintergreen 
Boojum Tree 
Box huckleberry 
Brackishwater Mangrove 
Brazil nut tree 
Brush Heath 
Bulley's Primrose 
Busy Lizzy 
California pitcher plant 
Camarinha