~ 30 species, see text Hymenodictyon is a genus of flowering plants in the family Rubiaceae.

[5][6] The generic name is derived from two Greek words, hymen, "membrane", and diktyon, "net".

[7] Molecular phylogenetic studies have shown that Hymenodictyon is paraphyletic over the Madagascan genus Paracorynanthe.

[8] In Hymenodictyon and Paracorynanthe, the stipules bear large deciduous glands called colleters.

As of March 2023[update], Plants of the World Online accepted the following species:[9]