teddy bear cholla - cylindropuntia bigelovii, cholla cactus garden at joshua tree national park

arid arizona cacti cactus dry landscape nature sonora teddy bear cholla tree cactuses california cylindropuntia bigelovii echinocarpa fulgida desert ecosystems extreme glochids growing heat joshua jumping mojave national park opuntia saguaro silver spines yellow barrell succulents engelmann 039 prickly pear hardy pincushion mammillaria plant spine treelike usa vegetation wilderness