How to Identify East Indian Walnut

Start with color contrast. East Indian Walnut is emphatically two-toned: a wide, pale cream-to-yellowish-tan sapwood against a walnut-brown heartwood carrying darker streaks. If a board shows a clean, sharp transition from pale outer wood to a browner, streaked core, that strong sapwood/heartwood boundary is a good early tell. A uniformly pale cream-to-tan board — like this sample — is showing the sapwood-side tones and can read much lighter than the wood's reputation suggests.

Check the end grain. As a legume, the wood is diffuse-porous to semi-ring-porous with fairly large, visible pores, often containing pale or dark gum-like deposits, and it shows the banded parenchyma (light tissue lines encircling or joining the pores) typical of the Fabaceae — quite different from the fine, even, gum-fleck-dotted end grain of true walnut. The face grain is commonly interlocked, so quartered surfaces throw a ribbon or stripe figure that shifts in the light; catching that interlocked shimmer is a strong clue.

Use weight and feel to bracket it. The wood is medium in density and medium-hard — noticeably solid in the hand but not as heavy as dense tropical species like jatoba or rosewood. Freshly worked Albizia has little pronounced scent, unlike the distinctive smell of true walnut, which is a useful negative check.

The usual confusions are with true walnut, monkeypod/raintree, and acacia. Genuine walnut (Juglans) is more uniformly chocolate-brown, finer-textured, lighter in weight, and lacks the pale wide sapwood band and coarse legume pores. Monkeypod or raintree (Albizia saman/Samanea saman) is a close cousin and looks very similar — often distinguished only by its typically darker, more richly figured heartwood and larger dimensions — so a pale, fine board may be hard to separate from it on wood alone. Acacia and koa share the legume pore-and-parenchyma structure but tend toward warmer red-brown tones rather than the cool cream-to-tan and gray-brown of this species.