Hedyotis degeneri Fosberg , Bernice P. Bishop Mus. Bull. 174: 55. 1943.
Type information:
Holotype [BISH]. O. Degener , K.K. Park and Y. Nitta & W. Bush 11695. 11 June 1932. O`ahu: [Wai`anae Mts.], mauka of Pu`u`iki, rocky, rainy ridge. Isotype(s) [B, BISH! [2], CU, G, GH, GRO, K, L, LCU, MASS!, MICH, MIN, MO! [2], NY [mfc!], S, US!].
=Kadua degeneri subsp. degeneri

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

Hedyotis degeneri Fosberg var. coprosmifolia Fosberg, Bernice P. Bishop Mus. Bull. 174: 56. 1943.
Type information:
Holotype [BISH]. C.N. Forbes 1774.O. 28 April 1912. O`ahu: Wai`anae Mts., Mokule`ia, slopes of Ka`ala. Isotype(s) [BISH! [3], MO!, US!].

Note: Although the holotype label gives the date as 16 May, Forbes's field book clearly indicates date as 28 April. MO sheet gives collection date as 16 April-16 May.

=Kadua degeneri var. coprosmifolia
Note: Although the holotype label gives the date as 16 May, Forbes's field book clearly indicates date as 28 April. MO sheet gives collection date as 16 April-16 May.

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