Metrosideros collina (J.R. Forst. & G. Forst.) A. Gray var. haleakalensis Rock, Hawaii, Board Agric. Forest. Bot. Bull. 4: 56. 1917.
Type information:
Holotype [BISH]. J. F. Rock 8593. September-\ 1910. Maui: [East Maui], Mt. Haleakala, gulches back of Puunianiau Crater.6500 to 7000ft. Isotype(s) [BISH!].

Note: Date published as October, but labels on both BISH sheets say September. Sheet illustrated is taken to be the holotype.

=Metrosideros polymorpha var. glaberrima
Note: Date published as October, but labels on both BISH sheets say September. Sheet illustrated is taken to be the holotype.

*Verification: R.K. Shannon.