Penstemon x peirsonii var. grinnellii x speciosus

Plant Information

Species:

x peirsonii

Species Authority:

Munz & I.M. Johnst.

Variety:

grinnellii x speciosus

Habit:

herbaceous perennial

Habit Woodiness:

none stated

Lifespan:

none-stated

Plant Height - Min:

3.00dm

Plant Height - Max:

3.00dm

Habitat Description:

Dry slopes.

Distribution Range:

Seymour Creek, Mt. Pinos, Ventura Co., California.

Soil Type:

Dry soils.

Elevation - Min:

1700.00m

Elevation - Max:

1800.00m

Other Notes:

Most probably a hybrid of the parentage stated. Both supposed parents occur in the vicinity of the type locality and the characters of P. Peirsonii are a combination of those of these two species. Were P. incertus involved in the parentage, as at one time proposed, we should expect a plant with glandular calyx and corolla. Furthermore, that species does not occur on Mt. Pinos any more than does P. heterophyllus, which likewise has been suggested as a parent.

First Bloom:

April

Last Bloom:

June

References:

Keck DD. 1937b. Studies in Penstemon no. 5: the section Peltanthera. American Midland Naturalist. 18(5):790-829.