Canada's Plant Hardiness Site

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

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