Acacia koa A. Gray var. latifolia (Benth.) H. St. John, Pacific Sci. 33: 363. 1979 [1980].
Flora of the Hawaiian Islands --Basionym Type Information Acacia heterophylla Willd., B? var. latifolia Benth., London J. Bot. 1: 369 1842.
Hawai`i: Mount Kaah. June 1825. J. Macrae s.n..
Holotype
[BM].
=Acacia koa