prickly pear cactus or opuntia ficus-indica at city roadside

prickly pear cactus opuntia ficusindica indian fig succulent plant grow vibrant spines prickles pads ornamental large branching treelike woody brown flat ovalshaped bluishgreen cladodes glochids hairlike spineless wide leaves stems areoles growth floral botanical outdoor road roadside street city town urban southwestern american phoenix arizona trees sky blue virtually