The record derives from Tropicos
(data supplied on )
which reports it as a synonym (record
18900375) with original publication details: Great Basin Naturalist 46(3): 550–554, f. 1 [map], 2, 3A–B, 4A 1986.
This name was in version 1 of The Plant List, record tro-18900375, and has not been changed.