Not an accepted name (status: unknown). The accepted name is Penstemon crandallii var. atratus (D.D.Keck) N.H.Holmgren, 1979.

Penstemon crandallii subsp. atratus D.D.Keck, 1979 4% complete

No common name

Brittonia 31: 105 (1979)

Specifications

Images

Synonyms

No known synonyms