Wikstroemia lanaiensis Skottsb. , Svensk Bot. Tidskr. 58: 180. 1964.
Type information:
Holotype [S]. F. Fagerlind and C. Skottsberg 6400. 24 February 1948. Lana`i: near Munro's old house, foot of high ridge. Isotype(s) [GB, UPS].
=Wikstroemia oahuensis var. oahuensis

*Verification: None.

Wikstroemia lanaiensis Skottsb. var. acutifolia Skottsb., Acta Regiae Soc. Sci. Litt. Gothob., Bot. 1: 65. 1972.
Type information:
Holotype [S]. F. Fagerlind and C. Skottsb 6424. 24 February 1948. Lana`i: along the foot of the high ridge. Isotype(s) [UPS].
=Wikstroemia oahuensis var. oahuensis

*Verification: None.