⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-35105336, with some changes.
This name is a synonym of Porothamnium bigelovii .
The record derives from Tropicos which reports it as a synonym (record 35105336
) with original publication details: Amer. Midl. Naturalist 5: 51 51 1917.