Bidens skottsbergii Sherff , Bot. Gaz. (Crawfordsville) 91: 311. 1931.
Type information:
Holotype [GB]. C. Skottsberg 2092. 30 September 1926. Hawai`i: Puna Road S of Hilo. Isotype(s) [BISH!].

Note: Sherff cited type as being at GB, and BISH sheet was labeled "cotype" by Skottsberg.

=Bidens hawaiensis
Note: Sherff cited type as being at GB, and BISH sheet was labeled "cotype" by Skottsberg.

*Verification: R.K. Shannon.

Bidens skottsbergii Sherff var. conglutinata (O. Deg. & Sherff) Sherff, Bot. Gaz. (Crawfordsville) 92: 206. 1931. Flora of the Hawaiian Islands --Basionym
Type Information
Bidens hawaiensis A. Gray var. conglutinata O. Deg. & Sherff, in Sherff, Bot. Gaz. (Crawfordsville) 89: 364 1930.
Hawai`i: [easternmost part of island], near [SE of] Pahoa, on dry lava flow of 1840. 18 November 1929. O. Degener 3798.
Holotype [F]. Isotype(s) [B [PD], BISH!, F, GH, K, NY [mfc!]].

Note: Collector and collector number published erroneously as Borges 3798; specimen labels clearly indicated that collection number is Degener's. BISH sheet is ex herb. Degener.

=Bidens hawaiensis
*Verification: R.K. Shannon.
---------------------


*Verification: D.M. Mix.

Bidens skottsbergii Sherff var. pololuensis O. Deg. & Sherff, in Sherff, Bot. Leafl. 8: 24. 1953.
Type information:
Holotype [F]. O. Degener and A. Greenwell 21892. 19 February 1952. Hawai`i: [North Kohala], west slope of Pololu Valley, partly shaded ledges.1000ft. Isotype(s) [AC, BISH!, G, G-DEL, GH, K, MASS!, P, PH, US].
=Bidens hawaiensis

*Verification: R.K. Shannon.