N. Vietnam, prov. Ha Giang, distr. Yen Minh, municipality Du Gia, vicinities of Coc Pan village (N 23°56′ E 105°13′). Secondary wet closed evergreen broadleaved forest on limestone ridge foothills along river at 450 m elev. Fern with fronds up to 1.2 m lg on open wet limestone. Very common. Codominanthe of herb stream side communities. Young leaves edible.
CBL 2020 03 May 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)