Nototrichium sandwicense (A. Gray) Hillebr. var. niihauense H. St. John, Pacific Sci. 13: 166. 1959.
Type information:
Holotype [BISH]. H. St. John 22830. 16 August 1947. Ni`ihau: first valley W of Ka`ali Cliff, top of steep basalt talus.100ft. Isotype(s) [BISH!].
=Nototrichium sandwicense