Dipterocarpus dyeri (Khmer: rôyiëng, chhë tiël pruhs, chhë tiël th'nô:r,[2] local name Kompong Thom: chhieutiel chgor,[3] name used for commercial timber and the group of trees harvested for such: keruing, Vietnamese: Dầu Song Nàng,[4] is a species of tree in the family Dipterocarpaceae found in Myanmar, Thailand, Peninsular Malaysia (Kedah, Perlis), Cambodia, Vietnam, and northwestern Borneo.[1][5] The tree is found in rain forest and lowland semi-evergreen dipterocarp forests,[1][6] an alternative habitat description is mixed dense forests of the plains, mainly among rivers and valleys.[2] The tree is a climax or late successional species, which in some secondary forests forms relatively young pure colonies.[7]
The conservation status is based on rates of habitat loss, the major threat to the taxa,[1] though in Vietnam it is cited as having a less threatened conservation status of Vulnerable.[4]
In Cambodia the wood is classified as of the 2nd best category, and is in great demand for house and boat construction.[2]
Loc, P.K., 1992, Annotations to: Conservation status listing for Philippines dated 6 April 1992
Oldfield, S., C.Lusty & A.MacKinven, compilers, 1998, The World List of Threatened Trees, World Conservation Press, Cambridge, England
Smitinand, T., 1958, Identification keys to genera and species of the Dipterocarpaceae of Thailand, Royal Forest Dept.
Soerianegara, I., & R.H.M.J.Lemmens, eds, 1993, Timber trees: major commercial timbers, In: Faridah Hanum, I., & L.J.G.van der Maesen, eds., Plant Resources of South-East Asia (PROSEA). (Pl Res SEAs) 5(1):178.
