Penstemon x dubius var. centranthifolius X grinnellii
Species:
x dubius
Variety:
centranthifolius X grinnellii
Habit:
herbaceous perennial
Habit Woodiness:
none stated
Lifespan:
long-lived
Plant Height - Min:
3.00dm
Plant Height - Max:
12.00dm
Distribution Range:
Mount Lowe, San Gabrial Mountains, Los Angeles County, California.
Other Notes:
The type combines the characters of its two parents to such a degree as to leave no doubt as to its hybrid nature. From its meager foliage this hybrid is perhaps a less successful combination than X P. Parishii, and probably, for that reason, of less interest to the horticulturists.
First Bloom:
none stated
Last Bloom:
none stated
Chromosome Number:
2n = 16
References:
Keck DD. 1937b. Studies in Penstemon no. 5: the section Peltanthera. American Midland Naturalist. 18(5):790-829.