Gigasiphon is a genus of plants in the family Fabaceae. The genus is circumscribed is defined by "a long-tubular hypanthium, an arborescent habit, and a calyx divided into two lobes". It includes five species native to eastern Africa, Madagascar, the Philippines, New Guinea, and Lesser Sunda Islands.

Species

Gigasiphon comprises the following species:

• Gigasiphon amplum (Span.) de Wit

• Gigasiphon dolichocalyx (Merr.) de Wit

• Gigasiphon humblotianum (Baill.) Drake

• Gigasiphon macrosiphon (Harms) Brenan

• Gigasiphon schlechteri (Harms) de Wit

Note: Gigasiphon gossweileri is now in the African monotypic genus Tournaya

References