Asia-Tropical, Morotai present, Obi present, northern Moluccas present
Malesia: northern Moluccas (Morotai, Obi).
1 Can be confused with H. parviflora which has more roundish (not pear-shaped) male buds and shorter petioles. Horsfieldia spicata is closely related but differs in the paler colour of the dried twigs, the generally spike-like male inflorescences, and the more membranous leaves. 2 I have not seen the type of H. olivaeformis, a name which may have priority but is not accepted here (De Wilde, I.e.).