cascade penstemon | sense examples, Usage and Definition from wordnet dictionary online

Noun cascade penstemon has 1 sense

cascade penstemon, Penstemon serrulatus - whorls of deep blue to dark purple flowers at tips of erect leafy stems; moist places from British Columbia to Oregon
--₁ is a kind of wildflower, wild flower
--₁ is a member of Penstemon, genus Penstemon