madagascar palm (pachypodium lamerei) has spiny trunk and white flowers : (pix sanjiv shukla)

pachypodium lamerei madagascar palm tree flowering plant family apocynaceae stem succulent photosynthesis pachycaul trunk africa large thorn leaves fragrant white flowers cultivation propagate grow dwarf growth habit corolla lobe tall silverygray sharp spines inflorescence long narrow top outdoors indoors warm climate full sun houseplant sunlight enlarged stores water drought spinescence distinguishing characteristics temperature