Book Triggerplant 
Bracera 
Brachyscome multifida 
Branched goodenia 
Brazilian Bachelor's Button 
Bristly bellflower 
Bristly thistle 
Brittlebush 
Broad-leaved Goldenrod 
Brocchia cinerea 
Brown-eyed Susan 
Brownplume Wirelettuce 
Bull thistle 
Burmeistera multiflora 
Butterbur 
Butterweed 
Button Everlasting 
Cabbage Thistle 
Calendula pachysperma 
Calendula palaestina 
Calico aster 
California Aster 
California Cudweed 
California goldenrod