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Pachypodium rosulatum inopinatum
This subspecies occurs in Madagascar.
The deciduous leaves are oblong, narrow and dark green. The leaves have a lighter middle vein and form a rosette around the tips of branches. The trunk is a smooth bottle shape, is greenish silver and is smaller than the type plant. Spines are conical. Branching occurs where the plant has flowered. The flowers are what distinguises the variants of this species. This variant has larger white flowers in clusters on shorter peduncles. Inopinatum means unexpected. Flowers will set in the second or third year in good conditions. Rosulatums should be given full light and plenty of water during the warmer months and considerably less water in the cool months. Seedlings grow fairly slowly compared to other Pachypodium species.