FLORA OF VIETNAM Cyatheaceae Cyathea gigantea (Hook.) Holttum ( C. salletti Tardieu et C. Chr. ?)
Northern Vietnam, Lao Cai Prov., Van Ban Distr., Khanh Yen Ha municipality, to the S of Na Nheo village (in the vicinity of point 21°59′04′'N, 104°15′08′'E). Primary closed broad-leaved evergreen submontane forest on steep granite and quartzite slopes of stream canyon at elev. 900-1250 m a.s.l. Woody fern about 1.5 m hg with fronds 3-3.5 m lg in open places among mossy stream boulders. Common.