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Definition of Rock penstemon
1. Noun. One of the West's most beautiful wildflowers; large brilliant pink or rose flowers in many racemes above thick mats of stems and leaves; ledges and cliffs from Washington to California.
Exact synonyms: Cliff Penstemon, Penstemon Rupicola
Generic synonyms: Wild Flower, Wildflower
Group relationships: Genus Penstemon, Penstemon
Generic synonyms: Wild Flower, Wildflower
Group relationships: Genus Penstemon, Penstemon