In

Myanmar Name – In

Common Name – Yang, White Meranti

Botanical Name – Dipterocarpus tuberculatus Roxb.

Family Name – Dipterocarpaceae

Habitat – Native to Southeast Asia, particularly found in countries such as Myanmar, Thailand, Cambodia, Laos, and Vietnam. It typically grows in lowland tropical rainforests.

Habit – Medium-size, deciduous tree with a straight and tall trunk. The tree can reach heights of up to 40 meters or more.

Bark – Outer surface of the bark gray with deep vertical and horizontal cracks in order younger stems, inner surface brown.

Leaves – Simple and alternate, with pointed tips, stipulate; petioles terete, 7.7 – 20.0 cm long and 0.6 – 1.2 cm in diameter.

Inflorescence – Appeared at the top of branchlets, emerged at the base or axil of stipule, monochasial scopioid cymes with 3 – 5 flowers.

Flower – Bracteate, pedicellate, ebracteolate, 3.5-4.2 cm long and 3.8-4.5 cm across; pedicel very short, terete, velvety tomentose, green; bract 10 mm long and 3 mm wide, elliptic in shape with tapering end; slightly irregular and zygomorphic due to the presence of two larger calyx-lobes .

Fruit And Seed – – Samaroids globose, with 5 persistent and accrescent calyx lobes forming wings, two larger and longer and three smaller and shorter. Winged seeds, brown, about 2-3 centimeters in length, flat and elliptical in shape.

Flowering and Fruiting Time – Flowering Period: February to March, fruits appeared in March.

Usage – The wood is not compact, so it is used as firewood. In traditional medicine, used to treat ailments such as diarrhea and inflammation.