FLORA OF VIETNAM
Polypodiaceae s.l. (Tectariacae)
Tectaria stenoptera Ching

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349°N 104.86446°E, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Terrestrial fern on steep shady river slope. Fronds to 1.5 long. Very common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1421 (HN, LE01061101, LE01067005).