microdonta Aidia cochinchinensis f. angustifolia Aidia cochinchinensis[1] is the type species of the genus Aidia, in the family Rubiaceae.

Aidia cochinchinensis is native to south-central China, including Hainan, and Vietnam.

[2] No subspecies are listed in the Catalogue of Life.

[3] Aidia cochinchinensis has commonly been reported in the Pacific Islands,[4][5] although Tirvengadum noted that the specimens from the Pacific islands were distinct from Aidia cochinchinensis in Vietnam[6][7] and in 1983 proposed Aidia racemosa as a unique species in the Pacific.

Plants of the World Online (POWO) follows Tirvengadum in identifying the Aidia of the Pacific region, including Australia and Pacific Islands, as A.