⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50140236, with some changes.
This name is a synonym of Abronia umbellata subsp. variabilis .
The record derives from Tropicos which reports it as a synonym (record 50140236
) with original publication details: Fl. Calif. 455 455 1914.