close up of alluaudia procera cactus. botanical garden heidelberg, baden wuerttemberg, germany

africa african alluaudia arboretum asteridae botanical botany cacti cactus caryophyllales closeup day deciduous desert didiereaceae dry during ericaceae ericaceous eudikotyledonen fleshy flora heath kerneudikotyledonen leaf line madagascar nature ocotillo outdoors people plant procera shot species spermatophyta spiky stem straight succulent tender thick tree tropical trunk warm