⚠ Version 1 of The Plant List has been superseded.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 Castilleja tristis in version 1.1 of The Plant List.

Castilleja tristis var. pubens W. Wight ex Standl. is a synonym of Castilleja yukonis Pennell

This name is a synonym of Castilleja yukonis Pennell.

The record derives from Tropicos which reports it as a synonym (record 100140783) with original publication details: U.S. Dept. Inter. Geol. Surv. Bull. 810: 108 108 1929.