Rubiaceae

Ophiorrhiza sp.

Lao Cai Prov., Sapa Distr., the territory of Hoang Lien National Park allied to Sapa Town, route to Ham Rong mountain, around point N 22º20’02’’ E 103º50’55”, elevation 1600-1680 m a.s.l. Humid mossy secondary forest and scrub on very steep slopes of mountain composed with solid marble-like highly eroded limestone on the territory of town botanical garden.

Terrestrial and lithophytic herb to 1 m tall in shady places between limestone rocks. Occasional.

26 May 2022, L. Averyanov, Tran Huy Thai, Khang Sinh Nguyen, T. Maisak, VR 1819.

All photos © - L. Averyanov, K.S. Nguyen