Penstemon attenuatus var. hyacinthinus (Pennell) M.Peck

, Man. Pl. Oregon 644 (1941).
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:187170-2
Publication
Manual of the Higher Plants of Oregon..., A
Collation
644
Family as entered in IPNI
Scrophulariaceae

Links

Nomenclatural link
Penstemon attenuatus subsp. hyacinthinus Pennell, Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 8 (1941).