Habit: shrub, tree

Plant Height (m): 1.5-9 m

Elevation (m): 650-1950 m

Distribution: China: Guangxi, Yunnan

Distribution: other countries: Burma, India, Laos, Thailand

Young Branch: pubescent

Leaf upper surface: glabrous, midrib hairy

Leaf texture: leathery

Leaf lower surface: glabrous, pubescent

Leaf length (cm): 8-13 cm

Leaf width (cm): 3-6 cm

Leaf shape: oblong-elliptic, oblong, elliptic, elliptic-ovate

Leaf margin: serrulate

Leaf apex: acuminate, acute, caudate

Leaf base: broadly-cuneate, cuneate, rounded

Lateral vein: pairs: 6-8

Petiole length (mm): 3-7 mm

Petiole: pubescent

Flower: solitary, 2-5 flowers clustered

Flower position: axillary, subterminal

Pedicel: absent

Bractlet number: 7-9

Bractlet: deciduous after anthesis

Bractlet shape: lunate, suborbicular

Branchlet length (mm): 1-7 mm

Bractlet hairiness: glabrous inside, glabrous outside, pubescent outside

Petal number: 5-8

Petal color: white

Petal shape: obovate

Petal apex: retuse

Petal length (mm): 20-30 mm

Petal width (mm): 6-8 mm

Stamen length (mm): 10-12 mm

Filaments hairiness: glabrous

Filaments: the base of outer filaments connate, not forming a tube

Ovary: pubescent

Ovary locus: 3-locular

Relative length of stamens and styles: stamens longer than styles

Style length (mm): 5.5-8 mm

Style hairiness: glabrous, pubescent at the lower part

Style: 3-cleft, 3-parted to near the base

Fruit shape: suborbicular

Fruit diameter (cm): 1.5-2 cm

Seed number per locule: 1

Seed shape: orbicular

Seed color: brown