Argyroxiphium sandwicense DC. , Prodr. 5: 668. 1836; Coll. Mem. 9: 27, pl. 8. 1838.
Type information:
Lectotype [CGE]. J. Macrae s.n..
Lectotypified in Carr. Allertonia 4: 58. 1985. Isolectotype(s) [K!, possibly G-DC, microfiche!].
=Argyroxiphium sandwicense subsp. sandwicense

*Verification: None.

Argyroxiphium sandwicense DC. subsp. macrocephalum (A. Gray) Meyrat, in Meyrat, Carr & Smith, Pacific Sci. 37: 224. 1983 [1984]. Flora of the Hawaiian Islands --Basionym
Type Information
Argyroxiphium macrocephalum A. Gray , Proc. Amer. Acad. Arts 2: 160 1852 [May].
Maui: Mouna Haleakala [base of high crater]. U. S. Expl. Exped. s.n..
Holotype [US]. 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
*Verification: R.K. Shannon, W.L. Wagner.
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*Verification: None.

Argyroxiphium sandwicense DC. var. kauense Rock & Neal, Occas. Pap. Bernice P. Bishop Mus. 22(4): 31. 1957.
Type information:
Holotype [BISH]. L. W. Bryan 25670. 26 July 1956. Hawai`i: Kau, S slopes of Mauna Loa, above Kau Forest Reserve, Kahuku.6700ft. Isotype(s) [BISH!, K!].
=Argyroxiphium kauense

*Verification: None.

Argyroxiphium sandwicense DC. var. macrocephalum (A. Gray) Hillebr., Fl. Hawaiian Isl. 219. 1888. Flora of the Hawaiian Islands --Basionym
Type Information
Argyroxiphium macrocephalum A. Gray , Proc. Amer. Acad. Arts 2: 160 1852 [May].
Maui: Mouna Haleakala [base of high crater]. U. S. Expl. Exped. s.n..
Holotype [US]. 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
*Verification: R.K. Shannon, W.L. Wagner.
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*Verification: D.M. Mix.