prickly pear cactus

american and bloom blossom botanical brown cactaceae cacti cactus canyon chlorophyll closeup color comestible common desert drink ecology engelmannii environment erinacea flora floral flowers foliage food fruit gold golden green horticulture land mexico native nature new opuntia ornament ornamental outdoor pear perennial petals plant prickly purple sand sandy southwest spine spiny stamen stem wildflower