Penstemon procerus Douglas ex Graham var. procerus
small-flowered penstemon (pincushion beardtongue)
Plantaginaceae (Mare's-tail family)
(Previously in Scrophulariaceae)
Introduction to Vascular Plants
small-flowered penstemon (pincushion beardtongue)
Plantaginaceae (Mare's-tail family)
(Previously in Scrophulariaceae)
Introduction to Vascular Plants