Laos, Vientiane prov., Vang Vieng district, close vicinities of Vang Vien town, secondary degraded evergreen forest on steep slopes of small rocky stream (dry during rainless season) between remnant mountains composed with karstic highly eroded marble-like limestone at elevation at 300-400 m a.s.l., epiphyte on tall tree. Not rare. 12 December 2015, L.Averyanov, T.Maisak, M.Nuraliev, N.Vislobokov, AL 178/1 Hoya sp. Creeping epiphytic and lithophytic semi-woody vine 3-4 m long in rather open place. Comon. AL 179 (1 plant)
Hoya sp. (or Aeschynanthus sp.?) Creeping epiphytic and lithophytic semi-woody vine 3-4 m long in rather open place. Comon. AL 180 (1 plant)