7, see text Cyathocalyx is a small genus of 7 species distributed throughout the floristic regions of the Indian subcontinent, Indo-China and Malesia.

[1] The name Cyathocalyx was erected as a genus in 1855 by Joseph Dalton Hooker and Thomas Thomson.

In 2006 Rui Jiang Wang and Richard M.K.

Saunders reduced the size of the genus from the then 36 species to 15.

[4] As of January 2025[update], Plants of the World Online accepts the following 7 species:[1]