Penstemon x jonesii var. eatonii x laevis

The hybrid between P. laevis and P. eatonii var. undosus is not surprising and has been collected before. Penstemon eatonii commonly hybridizes with neighboring species of Penstemon, probably due to the shrewdness of the nectar-seeking hummingbird, the primary pollinator of this red tubular-flowered species. Some of the taxa known to be involved are: P. palmeri, P. leiophyllus var. francisci-pennellii, P. speciosus, and in this hybrid combination, P. laevis.