Broussaisia arguta Gaudich. f. ternatea H. St. John, Pacific Trop. Bot. Gard. Mem. 1: 169. 1973.
Type information:
Holotype [BISH]. O. Degener and H. Wiebke 2308. 27 August 1927. Maui: on the way to Mt. `Eke from last ditchman's house at stream.
=Hydrangea arguta