Canada's Plant Hardiness Site

Synonymy

Plantaginaceae family
Penstemon fruticosus var. serratus (D.D.Keck) Cronquist
En: shrubby penstemon, bush penstemon, shrubby beardtongue;
Fr: penstémon frutescente

[=Penstemon fruticosus (Pursh) Greene subsp. serratus 'Holly']
[=Penstemon fruticosus (Pursh) Greene subsp. serratus 'True Blue']
[=Penstemon fruticosus (Pursh) Greene subsp. serratus D.D.Keck - basionym]