spiky tree trunk and branches of a madagascar palm (pachypodium lamerei) silhouetted against a cloudy sky

tree plant branch leaf nature green sky tropics sunlight wind thorns pachypodium lamerei flowering apocynaceae stem succulent photosynthesizing trunk madagascar leaves top grow palm tall silvery-gray sharp spines long narrow plants outdoors white spiky branches cloudy white clouds succulent outdoor landscape blue blue sky branch cactus clear desert environment flora garden green leaf leaves madagascar natural nature outdoors lamerei palm tree park plant silhouette spikes spines summer sunlight sunny texture thorn thorns trees tropical trunk cloud