Metrosideros polymorpha Gaudich. f. sericea (Rock) O.Deg. & I. Deg., . .
Flora of the Hawaiian Islands --Basionym Type Information Metrosideros collina (J. R. Forst. & G. Forst.) A. Gray f. sericea Rock, Hawaii, Board Agric. Forest. Bot. Bull. 4: 71 1917.