Penstemon angustifolius Fraser f. ex Pursh

, Fl. Amer. Sept. (Pursh) 2: 738 (1813). BHL
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:807994-1
Publication
Flora Americae Septentrionalis; or, a Systematic Arrangement and Description of the Plants of North America
Collation
2: 738
Date of Publication
Dec 1813
Family as entered in IPNI
Scrophulariaceae