FLORA OF VIETNAM
Orchidaceae
Appendicula hexandra (J.Koenig) J.J.Sm.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23°04ʹ38.6ʺN 104°56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Lithophytic and epiphytic clustering herb. Not rare. 17 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 900.3 (LE01058302). Herbarium specimen prepared in 30 July 2019, flowers white, column at front greenish.