Abortopetalum sandwicense O. Deg. var. welchii (Christoph.) O. Deg., Fl. Hawaiiensis, contents of second century and important notes. K8. 1936.
Flora of the Hawaiian Islands --Basionym Type Information Abutilon sandwicense (O. Deg.) Christoph. var. welchii Christoph., Occas. Pap. Bernice P. Bishop Mus. 10(15): 5 1934.
O`ahu: central Lualualei, below Kanehoa, side of valley 9, forest. 1500 ft. 29 June 1932. E. Christophersen 3714.
Holotype
[BISH]. Isotype(s)
[US!].
Note: Label gives collection date as 29 June, publication gives it as 20 June.