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Craig C. Freeman +
Douglas ex Lindley +
Penstemon +
Royal or showy beardtongue +
Calif. +, Idaho +, Nev. +, Oreg. +, Utah +  and Wash. +
300–3300 m. +
Sagebrush shrublands, pinyon-juniper woodlands, clearings in pine forests. +
Flowering May–Aug(–Sep). +
Edwards’s Bot. Reg. +
Selected by author to be illustrated +  and Endemic +
Penstemon speciosus subsp. kennedyi +
Penstemon speciosus +
Penstemon sect. Glabri +
species +