The common Malaysian name for the trees and timber of Crypteronia spp. (Crypteroniaceae). Vernacular names applied include bekoi daun nipis (Peninsular Malaysia), bekoi daun tebal (Peninsular Malaysia), kinkidon mantok (Sabah), rambai-rambai (Sabah), tampasu (Sabah), teletang (Sarawak), telinga badak (Peninsular Malaysia), ubah samak (Sarawak) and ubah semut (Sarawak). Major species include C. borneensis, C. griffithii, C. macrophylla and C. paniculata (var. affinis and var. paniculata). The sapwood is not differentiated from the heartwood, which is white or light brown with a pink or purple-pink tinge.
Also known as Trap toum (Cambodia); Djampoe, Engkolot, Kanabenti, Koembaa, Marotoewa tomo and Langori (Indonesia); ‘sa am (Laos); Anambo yon (Myanmar); Tiaui and Tigauon (Philippines); Ka som, Ka-am and Khap (Thailand); and Loi (Vietnam).
The timber is soft to moderately hard and light to moderately heavy with a density of 545-800 kg/m3 air dry.
It is moderately durable under cover.
The texture of the timber is rather fine and even, with straight or slightly wavy grain.
It is easy to work.
The timber seasons well.
The timber is suitable as a general utility timber as well as for furniture, flooring and interior finish.
Wong, T. M. 1982. A Dictionary of Malaysian Timbers. Revised by Lim, S. C. & Chung, R. C. K. Malayan Forest Record No. 30. Forest Research Institute Malaysia Kuala Lumpur. 201 pp.