Penstemon heterophyllus subsp. spinulosus D.D.Keck

, Univ. Calif. Publ. Bot. 16: 410 (1932). BHL
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:187541-2
Publication
University of California Publications in Botany. Berkeley, CA
Collation
16: 410
Family as entered in IPNI
Scrophulariaceae

Links

Nomenclatural link
Penstemon spinulosus Wooton & Standl., Contr. U.S. Natl. Herb. 16: 173 (1913).