FLORA OF VIETNAM Convallariaceae Ophiopogon caulescens (Blume) Backer Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Can Ty commune, Lung Vay village, around point 23º05ʹ46.7ʺN 105º02ʹ53.1ʺE, 1100-1280 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved humid forest on steep rocky slopes near mountain tops. Terrestrial and lithophytic herb with short, erect stem 10-15 cm long and stout stilt roots. Occasional. 15 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 197.

All photos © L. Averyanov & K.S. Nguyen