Habit: shrub, tree

Plant Height (m): 2-10 m

Elevation (m): 800-2000 m

Distribution: other countries: Thailand

Young Branch: hirsute

Leaf upper surface: glabrous

Leaf texture: leathery

Leaf lower surface: midrib hairy

Leaf length (cm): 6-9 cm

Leaf width (cm): 2.5-4 cm

Leaf shape: oblong-elliptic, oblong

Leaf margin: serrulate

Leaf apex: acuminate, acute

Leaf base: broadly-cuneate, cuneate

Petiole length (mm): 4-7 mm

Petiole: hirsute

Flower: solitary

Flower position: axillary, subterminal

Pedicel: absent

Bractlet number: 5-6

Bractlet shape: lunate, semiorbicular

Branchlet length (mm): 1-3 mm

Bractlet hairiness: glabrous outside, pubescent on both sides, sericeous on both sides

Sepal: persistent

Sepal number: 5

Sepal shape: suborbicular

Sepal length (mm): 4-5.5 mm

Sepal hairiness: glabrous outside, margin ciliated, pubescent on both sides

Petal number: 5

Petal color: white

Petal shape: obovate, broadly elliptic

Petal length (mm): 8-13 mm

Stamen length (mm): 8-12 mm

Filaments hairiness: glabrous

Filaments: outer filaments completely connate into a long fleshy tube

Ovary: pubescent

Ovary locus: 3-locular

Style length (mm): 1-2 mm

Style hairiness: glabrous, pubescent at the lower part

Style: 3-cleft

Fruit shape: suborbicular

Fruit diameter (cm): 3 cm

Seed number per locule: 1

Seed shape: suborbicular

Seed color: brown