Stenogyne affinis C. N. Forbes , Occas. Pap. Bernice P. Bishop Mus. 6(3): 182. 1916.
Type information:
Holotype [BISH]. C. N. Forbes 834.H. 12 June 1915. Hawai`i: Pu`u Huluhulu. Isotype(s) [BISH! [2], US!].
=Stenogyne microphylla

*Verification: W.L. Wagner, S.G. Weller, A.K. Sakai.

Stenogyne affinis C. N. Forbes var. degeneri Sherff, Amer. J. Bot. 28: 29. 1941.
Type information:
Holotype [F]. O. Degener , E. OrdoƱez and F. C. Salucop 12465. 9 August 1939. Maui: [East Maui], Haleakala, N of Kuiki beyond National Park boundary, at outskirt [rim] of forest where windy [in gulch]. Isotype(s) [BISH!, GH, MO!, NY [mfc!], US!].
=Stenogyne rotundifolia

*Verification: W.L. Wagner, S.G. Weller, A.K. Sakai.

Stenogyne affinis C. N. Forbes var. retrorsa O. Deg. & Sherff, in Sherff, Brittonia 12: 174. 1960.
Type information:
Holotype [F]. O. Degener , I. Degener and W. Fleming 25090. 24 March 1959. Maui: [West Maui], ridge N of Amalu Stream, in rain forest.4500ft. Isotype(s) [BISH!, F, NY [mfc!]].
=Stenogyne kamehamehae

*Verification: W.L. Wagner.