Metrosideros polymorpha Gaudich. var. haleakalensis (Rock) H. St. John, Phytologia 42: (215-218). 1979.
Flora of the Hawaiian Islands --Basionym Type Information Metrosideros collina (J. R. Forst. & G. Forst.) A. Gray var. haleakalensis Rock, Hawaii, Board Agric. Forest. Bot. Bull. 4: 56 1917.
Maui: [East Maui], Mt. Haleakala, gulches back of Puunianiau Crater. 6500 to 7000 ft. September-\ 1910. J. F. Rock 8593.
Holotype
[BISH]. Isotype(s)
[BISH!].
Note: Date published as October, but labels on both BISH sheets say September. Sheet illustrated is taken to be the holotype.