trefle
Explore
Documentation
Data
About
Donate
Sign in
Plantaginaceae
Penstemon
Penstemon arkansanus
Penstemon arkansanus
Pennell, 1922
10% complete
Arkansas beardtongue
Proc. Acad. Nat. Sci. Philadelphia 73: 493 (1921 publ. 1922)
Specifications
Images
Synonyms
Penstemon pallidus subsp. arkansanus
(Pennell) R.W.Benn.
Penstemon wherryi
Pennell
Penstemon multicaulis
Pennell