Gyrostipula is similar to Breonia, and has been confused with that; for their separation, see the key to Breonia and similar genera on the page for that genus. Gyrostipula is characterized by its relatively large, narrowly triangular stipules that are tightly twisted in bud, its axillary inflorescences with each peduncle bearing one globose head, and its sessile, free (i.e., separated) flowers. Razafimandimbison & Bremer (2001) presented an analysis based on molecular sequence data of the relationships of Gyrostipula, which they found grouped with Janotia and Breonia, and these all related to Breonadia. Ridsdale (1975: 549-550) presented a morphological description of this genus and recognized one species, G. foveolata, synonymizing G. comorensis with it. However Emanuelsson & Razafminandimbison (2007) recognized G. comorensis as a separate species restricted to the Comores.