Phacelia popei

A low-elevation species in which Phacelia arizonica has sometimes been included.

Plant habit at the Dog Canyon Trailhead in Big Bend National Park, 16 Apr 2007.

Scorpioid cymes at the Dog Canyon Trailhead, 16 Apr 2007.

Flowers at the Dog Canyon Thd., 16 Apr 2007.

A basal leaf at the Dog Canyon Trailhead, Big Bend National Park, 16 Apr 2007.

Flowers near the west escarpment of the Guadalupe Mts., 3/26/05.

A plant in bud near the west escarpment of the Guadalupes, 3/26/05.