A monogeneric family which has been regarded as consisting of a single species, Backer (1951) but more recently suggested to consist of five or more species. Rudall et all (1999). Found in Ceylon, SE Asia, Malesia and Australia.

Hanguana - A monotypic genus, Backer (1951) or a genus of five or more species. Rudall et al. (1999); probably only one species in Australia. Hewson (1986).

Backer, C.A. (1951). Flagellariaceae. In 'Flora Malesiana.' Ser. 1, Vol. 4, (P.Noordhoff Ltd: Gronigen.), pp. 245-250.

Hewson, H.J. (1986). Hanguanaceae. In 'Flora of Australia.' Vol. 46, (Australian Government Publishing Service: Canberra.), pp. 172-173.

Rudall, P.J., Dennis, W.S. & Linder, H.P. (1999). Structure and systematics of Hanguana, a monocotyledon of uncertain affinity. Australian Systematic Botany 12:311-330.