Pachypodium

plant genus

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In Apocynaceae: Major genera and species
The genera Adenium and Pachypodium are African succulents with alternately arranged leaves and strangely shaped trunks. Several succulent plants of the Asclepiadoideae subfamily, such as Hoodia, Huernia, and carrion flower (Stapelia), produce odours that are offensive to humans but attract pollinating flies.
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