About Penstemon labrosus (A.Gray) Mast. ex Hook.fil.
Penstemon labrosus (A.Gray) Mast. ex Hook.fil. is a species of penstemon commonly known as San Gabriel beardtongue. It is native to the Transverse Ranges of southern California, including the San Gabriel Mountains, and the Peninsular Ranges extending south into Mexico. It grows in forest and woodland habitats. This species is a perennial herb that grows erect to around 70 centimeters tall. Its long, paired leaves are linear in shape with rolled, untoothed edges, and reach a maximum length of over 8 centimeters. Its inflorescence produces bright red to orange or yellowish flowers that are 3 to 4 centimeters long. The upper lip of the flower is hood-shaped, while the lower lip is divided into 3 narrow lobes that are sometimes reflexed. The entire flower, including the staminode, is hairless. Penstemon labrosus is native to both California and Baja California. In Baja California, it grows at elevations of 1,550 meters and higher in the Sierra de Juárez and the Sierra de San Pedro Mártir. It tends to grow on granitic slopes, and is associated with pine and oak habitats.
