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Definition of Hot-rock penstemon
1. Noun. Stems in clumps with cream-colored flowers; found from Washington to Wyoming and southward to California and Utah.
Exact synonyms: Penstemon Deustus
Generic synonyms: Wild Flower, Wildflower
Group relationships: Genus Penstemon, Penstemon
Generic synonyms: Wild Flower, Wildflower
Group relationships: Genus Penstemon, Penstemon