This showy plant produces clusters of stems with multiple pink flowers. "Penstemon" means "five stamens". Multiple specimens were found in the sandy wash bed during the hike.
A very common spring flower seen along the roadsides and trails in the area. "Caliche" is a hard layer of calcium carbonate rock that is found under the topsoil. This is identified from other Globemallow species by dark purple stamens (not quite visible in this photo) and wider spacing between flower branches.
Examples of this plant were found in a very limited area along the trail. I've not seen them in any other locations before or since.
Larkspurs are beautiful, distinctive flowers found in various biotic zones. This was another flower found in a very discreet location along the trail. One of the guidebooks specifically mentioned its location along this trail, so I feel lucky to have seen it.
Barestem Larkspur - close-up view