Canada's Plant Hardiness Site

Plantaginaceae snapdragon family
Penstemon barbatus (Cav.) Roth
En: scarlet bugler, beardlip penstemon, goldenbeard penstemon, southwestern penstemon, bearded penstemon;
Fr:

• [=Chelone barbata Cav. - basionym]
• [=Penstemon barbatus (Cav.) Nutt. 1818, nom. illeg. isonym, non (Cav.) Roth 1806]
• [=Penstemon barbatus (Cav.) Roth forma flaviflorus (M.E.Jones) Pennell]
• [=Penstemon barbatus (Cav.) Roth var. coccineus hort.]
• [=Penstemon barbatus (Cav.) Roth var. trichander A.Gray]
• [=Penstemon barbatus 'Hyacinth']
• [=Penstemon barbatus 'Navigator']
• [=Penstemon flaviflorus M.E.Jones]
• [=Penstemon frutescens Lamb.]