FLORA OF VIETNAM
Ophioglossaceae
Helminthostachys zeylanica (L.) Hook.

Dak Lak Province, Buon Don District, Yok Don National Park, open dry Dipterocarp forest and woodlands with dense low bamboo, at elevation 300-400 m a.s.l., terrestrial fern in shady place near wetland. Not common. 24 October 2019, L. Averyanov, Nguyen Van Canh, T. Maisak, AL 1169.