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Definition of Penstemon serrulatus
1. Noun. Whorls of deep blue to dark purple flowers at tips of erect leafy stems; moist places from British Columbia to Oregon.
Exact synonyms: Cascade Penstemon
Generic synonyms: Wild Flower, Wildflower
Group relationships: Genus Penstemon, Penstemon
Generic synonyms: Wild Flower, Wildflower
Group relationships: Genus Penstemon, Penstemon