Flowers of the Engelmann prickly pear bloom in May and last for just a day. Flowers of some plants age to orange the afternoon. They’ll be replaced on the plant by juicy fruits that ripen to varying shades of purple and red, depending on the particular plant.
Prickly pear cacti are closely related to the cholla, which both belong to the Opuntia genus. Both prickly pear and cholla cacti are very common in the Sonoran Desert