Monographs Details: Penstemon dolius var. duchesnensis N.H.Holmgren
Authority: Pavlik, Bruce M. & Barbour, Michael G. 1988. Demographic monitoring of endemic sand dune plants, Eureka Valley, California. Biol. Conserv. 46: 217-242.
Family:Scrophulariaceae
Description:Latin Diagnosis - A var. dolio caulibus plerumque brevioribus 2-6 (7) (nec 5-20) cm longis erectis (nec decumbentibus prostratisve), foliis majoribus 1-3 (nec 3-5.5) cm longis, corolla saturatius coerulea, staminodioque fere tota longitudine (nec plerumque apicem versus) barbato diversa.

Discussion:

Pennell (1920, p. 341) observed that the Jones s.n. (Theodore to Myton) "col- lection differs in its dwarf habit and more widely spreading corolla lobes, and only because of the variability in the corolla lobes of the type of P. dolius is it placed with this species."