Penstemon lyallii (A. Gray) A. Gray
Lyall's penstemon (Lyall's beardtongue)
Plantaginaceae (Mare's-tail family)
(Previously in Scrophulariaceae)
Introduction to Vascular Plants
Lyall's penstemon (Lyall's beardtongue)
Plantaginaceae (Mare's-tail family)
(Previously in Scrophulariaceae)
Introduction to Vascular Plants