Hillebrandia sandwicensis
Oliv.
Trans. Linn. Soc. London 25: 361 (1866)
Begoniaceae
aka‘aka‘awa [akaakaawa] (Kaua‘i), pua maka nui This name is accepted

Hillebrandia sandwicensis f. albiflora
Skottsb.
Vascular plants from the Hawaiian Islands. IV. Phanerogams collected during the Hawaiian Bog Survey 1938. Acta Horti Gothoburgensis 15: 275–531.  p.400 (1944)
Begoniaceae
This name is a synonym of Hillebrandia sandwicensis