Keywords: Pentstemon rupicola 142-8660.jpg Penstemon rupicola Plantaginaceae Curtis's Botanical Magazine London vol 142 ser 4 vol 12 Tab 8660 - http //www botanicus org/page/471441 1916 M S del J N Fitch lith PD-Art Curtis's Botanical Magazine Volume 142 8660 Penstemon rupicola |