Helminthostachyaceae

Helminthostachys
Scientific classification
Kingdom:	Plantae
Division:	Pteridophyta
Class:	Psilotopsida
Order:	Ophioglossales
Family:	Ophioglossaceae
Subfamily:	Helminthostachyoideae C.Presl
Genus:	Helminthostachys Kaulf. 1824
Species
H. mexicana (C. Presl) Spreng. 1827 H. zeylanica (L.) Hook. 1824 H. lacinata Voigt. 1845
Synonyms
Botryopteris C. Presl 1825 Ophiala Desv. 1827

Helminthostachys is a fern genus in the Ophioglossaceae (Adder's tongue) family.