Omphalea ankaranensis is a plant species endemic to a small region in northern Madagascar. Type locale is in Antsiranana Province, inside Réserve Speciale Ankarana, 7 km SE of Matsaborimanga. Plant grows on limestone soils.
Omphalea ankaranensis is a tree up to 7 m tall. Leaves are heart-shaped, up to 16 cm long. Inflorescence is a racemous thyrse.Gillespie, Lynn Judith. 1997. Omphalea (Euphorbiaceae) in Madagascar: a new species and a new combination. Novon 7:127-136.
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