⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50210170, and has not been changed.
This name is a synonym of Argostemma distichum subsp. quadripetalum .
The record derives from Tropicos which reports it as a synonym (record 50210170
) with original publication details: Leafl. Philipp. Bot. 1: 63–64 63 1906.