Nototrichium sandwicense (A. Gray) Hillebr. var. dubium Sherff, Bot. Leafl. 2: 2. 1950.
Type information:
Holotype [BISH]. C.N. Forbes 1816.M. 3 March 1920. Maui: [East Maui], S slope of Haleakala, Manawainui, on side of gulch. Isotype(s) [BISH! [2], PTBG!, US!].
=Nototrichium sandwicense