Dyera spp. of the family Apocynaceae, including at least the following: Dyera borneensis, Dyera costulata, Dyera laxiflora, Dyera lowii, and Dyera polyphylla; also frequently spelled jelutung, native to Indonesia.
I have only one sample of this wood and have no idea what variety one might expect among the various species that are sold under this name. In my experience, it is not readily available in the USA but since I do have a sample, I've included it on the site.
my samples: NOTE: these pics were all taken in very bright incandescent lighting ("soft white" at 2700K) colors will vary under other lighting conditions
both sides of a sample plank of quartersawn jelutong / Dyera costulata --- HUGE enlargements are present. This sample was loaned to me by David Clark whom I thank for this and other contributions to the site. The labeled side is rough but the 2nd side has been sanded down to 240 grit and shows the face grain blandness without the planer skip that you see on the labeled side. This pieces is a edge-to-edge butt-joint laminate but it's still quite a good sample since it uses two identical pieces.
end grain and end grain closeup of the piece directly above