rings on the dry stump of a dead yucca brevifolia, mojave desert joshua tree national park, ca

mature life old hardwood cacti yuccas conifers joshua tree national park california agavoideae arid arizona asparagaceae asparagus barren barrenness biodiversity cactus chain fruit cholla desert succulents desolate drought droughts dry dryness flora hardy np landscape landscapes nature north america palm yucca plant saguaro sarcoyucca sonoran spine treelike vegetation wild wilderness brevifolia