1	"Stems at least 30 cm tall; prominent yellow nectary on each inner segment"	"Herbertia amatorum"
1	"Stems less than 20 cm tall; nectary never yellow"	2
2	"Outer perianth segments flat, spreading, 20–25 mm long"	"Herbertia lahue"
2	"Outer perianth segments bent downwards, 26–32 mm long"	"Herbertia pulchella"