⚠ Version 1 of The Plant List has been superseded.

This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Lupinus sparsiflorus in version 1.1 of The Plant List.

Lupinus sparsiflorus var. barbatulus Thornber ex C. P. Smith is a synonym of Lupinus arizonicus var. barbatulus (Thornber ex C. P. Smith) I.M. Johnst.

This name is a synonym of Lupinus arizonicus var. barbatulus (Thornber ex C. P. Smith) I.M. Johnst..

The record derives from Tropicos which reports it as a synonym (record 13064191) with original publication details: Bull. Torrey Bot. Club 47(11): 497-499, f. 57 497 1920.