Argyroxiphium macrocephalum A. Gray , Proc. Amer. Acad. Arts 2: 160. 1852 [May].
Type information:
Holotype [US]. U. S. Expl. Exped. s.n.. Maui: Mouna Haleakala [base of high crater]. Isotype(s) [GH!, K!].

Note: Although Carr (1985) cited the US sheet as the holotype he (erroneously) annotated as a lectotype designated by Keck (1936). St. John's (1985) lectotypification has no basis.

=Argyroxiphium sandwicense subsp. macrocephalum
Note: Although Carr (1985) cited the US sheet as the holotype he (erroneously) annotated as a lectotype designated by Keck (1936). St. John's (1985) lectotypification has no basis.

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