Penstemon pseudoparvus (San Mateo Penstemon)
Compact herbaceous perennial from a woody rhizome; stems 1-5, 10-30(32) cm high, 1.0-2.3 mm in diameter at the base, finely puberulent; leaves moderately thick, opaque, minutely puberulent and soon glabrescent or puberulent merely on the midvein, fai...