Penstemon whitedii subsp. typicus D.D.Keck

, Bull. Torrey Bot. Club 65: 253 (1938). BHL
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:187863-2
Publication
Bulletin of the Torrey Botanical Club. New York
Collation
65: 253
Family as entered in IPNI
Scrophulariaceae