Binjai ( Mangifera caesia ) is a plant species belonging to the Anacardiaceae family. It is a large tree with a dense canopy and a straight trunk, reaching a height of 30–45 meters with a trunk diameter of 50–80 cm. The bark is grayish-brown and fissured. All parts of the tree exude a sharp, whitish sap that causes skin irritation; upon exposure to air, this sap solidifies and turns black. M. caesia features simple, alternately arranged leaves that often cluster near the tips of the branches. The leaf blades are elliptic to lanceolate—sometimes slightly obovate—measuring 7–12 cm in length and 3–5.5 cm in width. They are stiff, glossy green on the upper surface, pale green on the underside, and possess a prominent midrib. The leaf base is decurrent (tapering along the petiole), while the apex is blunt or bluntly pointed. The petioles are stiff, flattened, and 1–2.5 cm long. The inflorescence consists of a panicle located at the end of a branch, reaching 15–40 cm in length; it is highl...
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