≡Anastrophyllum flexicaule (Nees) Steph., Bull. Herb. Boissier 5: 841. 1897.
≡Jamesoniella flexicaulis (Nees) Schiffn., Denkschr. Kaiserl. Akad. Wiss., Wien Math.-Naturwiss. Kl. 67: 196. 1898. (
Váňa et al. 2013)
≡Crossogyna flexicaulis (Nees) Schljakov, Novosti Sist. Nizsh. Rast. 12: 311. 1975. (
Schljakov 1975)
≡Syzygiella flexicaulis (Nees) Gradst. & G.E. Lee, Guide Gen. Liverw. Hornw. Malaysia: 53. 2021. (
Lee & Gradstein 2021)