Longan ( Dimocarpus longan ) is a plant species in the Sapindaceae family. It is an upright evergreen tree reaching heights of 10–20 meters, featuring a sturdy, cylindrical trunk with hard wood and rough, scaly, fissured bark ranging from grayish-brown to dull dark brown. The branching is expansive and radially horizontal, forming a massive, rounded, umbrella-like crown that is extremely dense and lush. The leaves are paripinnate and compound, arranged alternately, and measure 15–30 cm in length. Each stalk bears 2–5 pairs of leaflets arranged neatly in opposite or alternate patterns. The leaflets are elongated-elliptical, oblong, or lanceolate, measuring 7–15 cm long and 3–5 cm wide. They have stiff, tapering tips; bases that narrow into an asymmetrical wedge shape; and margins that are entire (smooth) or slightly wavy. The upper leaf surface is deep green and glossy, with a thick, waxy cuticle and a smooth, hairless texture. The underside is a pale, grayish-green and dull, with prom...
Dlium
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