Bonatea speciosa 
Bossier's Glory-of-the-snow 
Bossier's glory-of-the-snow 
Bottlebrush grass tree 
Bow-lip spider orchid 
Branched asphodel 
Branched Sand-Crocus 
Brassia euodes 
Brassia neglecta 
Brassia Spider's Gold 
Brassia warszewiczii 
Bratonia Shelob 'Tolkien' 
Bristley Pelexia 
Broad-leaved Helleborine 
Broad-leaved marsh orchid 
Broad-lipped twayblade 
Brown Lily 
Bulbine Lily 
Bulbophyllum claptonense 
Bulbophyllum fonsflorum 
Bulbophyllum irianae 
Bulbophyllum jolandae 
Bulbophyllum kubahense 
Bulbophyllum montense