This is a somewhat unique, tree-like shrub, with a short trunk and numerous branches growing upright. When in bloom this species has a spectacular reddish-pink bloom, very bright and in stark contrast to the desertscape. Reportedly the bark is stripped and cooked and used to wash cuts.
Passiflora palmeri - Passion flower, Granadilla, Sandia de la Passion
Here are some photos of the desert native Passiflora palmeri, photographed in Baja Sur, Mexico.