Habit: shrub, tree

Plant Height (m): 2-6 m

Elevation (m): 1500 m

Distribution: China: Yunnan

Distribution: other countries: Vietnam

Young Branch: pubescent

Leaf upper surface: midrib hairy, tuberculate

Leaf texture: papery

Leaf lower surface: pubescent, midrib hairy, tuberculate

Leaf length (cm): 8.5-12 cm

Leaf width (cm): 2.5-3.5 cm

Leaf shape: oblong

Leaf margin: serrulate

Leaf apex: acuminate, caudately acuminate

Leaf base: rounded

Lateral vein: pairs: 6-8

Petiole length (mm): 3-5 mm

Petiole: pubescent

Flower: solitary, 2-5 flowers clustered

Flower position: axillary, subterminal

Pedicel length (cm): 0.2 cm

Bractlet number: 4-5

Bractlet: persistent

Bractlet position: covers the pedicel

Bractlet shape: lunate, semiorbicular

Branchlet length (mm): 1-2 mm

Bractlet hairiness: glabrous outside, margin ciliated

Sepal: margin membranous, persistent

Sepal number: 5

Sepal shape: orbicular, suborbicular

Sepal length (mm): 2-3.5 mm

Sepal hairiness: margin ciliated, pubescent outside

Petal number: 5

Petal color: white

Petal shape: obovate, broadly obovate

Petal apex: retuse, round

Petal length (mm): 10-15 mm

Petal width (mm): 6-7 mm

Stamen length (mm): 8-11 mm

Filaments hairiness: upper part villose, glabrous

Filaments: lower half of outer filaments connate into a short tube

Ovary: glabrous

Ovary shape: ovate

Ovary locus: 3-locular

Relative length of stamens and styles: equal

Style length (mm): 8-10 mm

Style: 3-cleft

Fruit shape: orbicular

Fruit diameter (cm): 1.5 cm

Seed number per locule: 1

Seed color: brown