FLORA OF VIETNAM Convallariaceae Ophiopogon tonkinensis L.Rodr.?
Son La Prov., Van Ho Distr., Tan Xuan Municipality, Cot Moc village, territory of Xuan Nha natural reserve, eastern slopes of Pha Luong Mountain.
Remnants of primary and secondary broad-leaved evergreen humid forest on very steep mountain slopes composed by shale and sandstone at elevation 1000-1400 m a.s.l. around point 20°40′33.3″N 104°39′00.3″E.
Terrestrial herb with erect naked semi-woody stem to 60 cm tall on shady steep slope. Fruits dark glossy green. Common.