S. Vietnam, Prov. Kontum. Evergreen primary forest at 600 m along Dak Mek river at 820 m alt. near Muong Hoong village. Tree 4-6 m high. Flowers yellowish. No VH 1062 31.03.1995
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5094-93)