Bidens sandvicensis Less. , Linnaea 6: 508. 1831.
Type information:
Holotype
[B]. L. C. A. Chamisso s.n.. 1816. O`ahu: s.l..
Bidens sandvicensis Less. f. compositior O. Deg. & Sherff, in Sherff, Bot. Gaz. (Crawfordsville) 88: 296. 1929.
Type information:
Holotype
[F]. O. Degener and K. Nitta 3411a. 13 January 1929. O`ahu: east rim of Manoa Valley, 1 mi mauka of the University.450m.
=Bidens sandvicensis subsp. sandvicensis
Bidens sandvicensis Less. subsp. confusa Nagata & Ganders, Lyonia 2: 2. 1983.
Type information:
Holotype
[BISH]. K. Nagata 2473. 5 June 1982. Kaua`i: Waimea Dist., Koke`e, along Waimea Canyon Road near Canyon Lookout.1005m.
=Bidens sandvicensis subsp. confusa
Bidens sandvicensis Less. var. antrorsa O. Deg. & Sherff, in Sherff, Bot. Leafl. 3: 8. 1951.
Type information:
Holotype
[F]. O. Degener and W. Hatheway 21183. 19 December 1950. O`ahu: Wailupe Valley.610m.
=Bidens sandvicensis subsp. sandvicensis
Bidens sandvicensis Less. var. caduca Sherff, Bot. Gaz. (Crawfordsville) 85: 7. 1928.
Type information:
Holotype
[B]. W. Hillebrand s.n.. 1851- 1871. Moloka`i: s.l..
Bidens sandvicensis Less. var. heterophylla A. Gray, Proc. Amer. Acad. Arts 5: 128. 1861.
Type information:
Holotype
[GH]. J. Rémy 281. 1851 1855. Hawai`i: s.l..
=Bidens micrantha subsp. ctenophylla
Bidens sandvicensis Less. var. imminuta O. Deg. & Sherff, in Sherff Bot. Gaz. (Crawfordsville) 93: 217. 1932.
Type information:
Holotype
[F]. O. Degener , K.K. Park and K. Kwon 4092. 14 November 1931. O`ahu: narrow middle Wai`alae Ridge on grassy, shrubby plateau.1000ft. Isotype(s)
[B [PD], BISH! [2], BM, F, G-BOIS, GH, K, MASS!, MO! [2], P, US! [2]].
Bidens sandvicensis Less. var. leiocarpa O. Deg. & Sherff, in Sherff, Brittonia 12: 175. 1960.
Type information:
Holotype
[F]. O. Degener , I. Degener and W. Fleming 25108. 27 March 1959. Maui: West Maui, Honokawai Ditch Trail, sunny ledges.1500ft. Isotype(s)
[BISH!, F, MASS!, MO!, NY [mfc!], US].
=Bidens micrantha subsp. micrantha
Bidens sandvicensis Less. var. ovatifolia A. Gray, Proc. Amer. Acad. Arts 5: 128. 1861.
Type information:
Holotype
[US]. U. S. Expl. Exped. s.n.. 1840. O`ahu: s.l..
=Bidens macrocarpa
Bidens sandvicensis Less. var. setosa (Sherff) Sherff, Bot. Gaz. (Crawfordsville) 85: 6. 1928.
Bidens sandvicensis Less. var. waimeana (Sherff) Hochr., Candollea 5: 323. 1934.