Place of publication:
Brittonia 16:261. 1964
Comment:
no type was designated for the subspecies, and although the taxon was divided into four varieties, including var. oahuensis, the variety is not an autonym because only the species epithet can have a corresponding autonym (Shenzhen ICN 26.3)
Verified:
10/23/2018
ARS Systematic Botanists.