Yen Bai Prov., Mu Cang Chai Distr., Nam Co municipality, near Phinh Ngai village , around point 21°53′ 57.1″N, 104°18′ 06.9″E, 1720 m a.s.l. Secondary evergreen broad-leaved woodland and scrub on the soil mountain Herb vine 0.5- 1 m long, growing in wet place, common; sepals and petals white- green CPC 4455 21 September 2011 Coll.: N.T.Hiep, N.S. Khang. P.V. The. N.T. Vinh & H.V. Than Sponsored by Charity Number 1011102 through FFI with Project Title: Conservation of Taiwania cryptomeriodes Hayata through in-situ protection and promotion as a national reforestation species