Centrostemma

Morphological Summary

Genus of tropical vines in the family Apocynaceae (subfamily Asclepiadoideae) native to Southeast Asia and Malesia. Hemi-epiphytic or terrestrial plants with fleshy leaves and star-shaped flowers grouped in axillary umbels. Treated by some authors as a synonym of Hoya, although recent work supports its generic distinction. Flowers bear a characteristic five-lobed central corona.