Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Penstemon davidsonii var. menziesii
Photo is of parent taxon

Davidson's beardtongue, Davidson's penstemon, Menzies' penstemon
Leaf

blades spatulate to elliptic, margins ± serrulate, apex rounded to obtuse or acute.
Flowers

corolla violet, 20–35 mm, moderately white-villous internally abaxially.
2n

= 16.

Penstemon davidsonii var. menziesii
Phenology Flowering Jun–Aug.
Habitat Rock outcrops, ledges, talus slopes.
Elevation 30–2000 m. (100–6600 ft.)
Distribution
from FNA
OR; WA; BC
[BONAP county map]
Discussion

The ranges of var. davidsonii and var. menziesii overlap throughout much of British Columbia and Washington.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 87.
Parent taxa Plantaginaceae > Penstemon > subg. Dasanthera > sect. Erianthera > Penstemon davidsonii
Sibling taxa
P. davidsonii var. davidsonii, P. davidsonii var. praeteritus
Synonyms P. davidsonii subsp. menziesii, P. menziesii subsp. thompsonii
Name authority (D. D. Keck) Cronquist: in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. 4: 379. (1959)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

The species comparison tool is brought to you by:
Northwest Wildflowers