euphorbia trigonia is succulent stems and branches with an adaptation to arid environment.

euphorbiaceae african milk tree cathedral cactus abyssinian euphorbia trigonia plant green nature succulent fresh flora botany color leaf desert garden tropical flower houseplant growth africa pot trigona leaves cacti summer stem foliage spurge spines environment prickly perennial needle thorn milkweed spiny blossom spine ingens tall bush drought ecology evergreen shrub