Ptilotus sandwicensis A. Gray , in Mann, Proc. Amer. Acad. Arts 7: 200. 1867.
Type information:
Lectotype [GH]. J. Rémy 207'. 1851- 1855. Hawai`i: s.l..
Lectotypified in Sherff. Bot. Leafl. 4: 6. 1951. Isolectotype(s) [BISH!, F, NY].

Note: Additional syntype: Hawai`i, U.S. Expl. Exped. s.n. (US). Rémy 207 is from O`ahu; one sheet at GH from O`ahu is labeled 207'. Gray did not cite any U.S. Expl. Exped. collections for this species, but there is a U.S. Expl. Exped. sheet from Hawai`i at US that Gray undoubtedly saw.

=Nototrichium sandwicense
Note: Additional syntype: Hawai`i, U.S. Expl. Exped. s.n. (US). Rémy 207 is from O`ahu; one sheet at GH from O`ahu is labeled 207'. Gray did not cite any U.S. Expl. Exped. collections for this species, but there is a U.S. Expl. Exped. sheet from Hawai`i at US that Gray undoubtedly saw.

*Verification: R.K. Shannon, W.L. Wagner.

Ptilotus sandwicensis A. Gray var. kavaiensis A. Gray, in Mann, Proc. Amer. Acad. Arts 7: 200. 1867.
Type information:
Holotype [US]. U. S. Expl. Exped. s.n.. 1840. Kaua`i: s.l..
=Nototrichium sandwicense

*Verification: R.K. Shannon, W.L. Wagner.