Habit: shrub, tree

Plant Height (m): 1-8 m

Elevation (m): 1200-3200 m

Distribution: China: Yunnan

Distribution: other countries: Vietnam

Young Branch: pubescent, hirsute

Leaf upper surface: midrib hairy

Leaf texture: leathery

Leaf lower surface: pubescent, midrib hairy

Leaf length (cm): 2-6.5 cm

Leaf width (cm): 1-2.5 cm

Leaf shape: oblong-elliptic, ovate

Leaf margin: serrulate

Leaf apex: acuminate, acute, obtuse

Leaf base: rounded, obtuse

Petiole length (mm): 2-4 mm

Petiole: hirsute, pubescent

Flower: solitary, 2-5 flowers clustered

Flower position: axillary, subterminal

Flower diameter (cm): 1.5-2.5 cm

Pedicel length (cm): 0.2-0.45 cm

Bractlet number: 3-4

Bractlet: persistent

Bractlet shape: broadly ovate, semiorbicular

Bractlet hairiness: glabrous outside, margin ciliated

Sepal: margin membranous, persistent

Sepal number: 5

Sepal shape: broadly ovate, suborbicular

Sepal length (mm): 2.5-5 mm

Sepal hairiness: glabrous outside, pubescent inside

Petal number: 5-6

Petal color: white

Petal shape: broadly ovate

Petal apex: retuse, round

Petal length (mm): 6-15 mm

Stamen length (mm): 9-12 mm

Filaments: lower half of outer filaments connate, not forming a tube

Ovary: glabrous

Ovary shape: orbicular

Ovary locus: 3-locular

Relative length of stamens and styles: equal

Style number: 3

Style: 3-parted, but not to the base

Fruit shape: orbicular, ovate

Fruit diameter (cm): 1.2-1.5 cm

Seed number per locule: 1

Seed shape: suborbicular

Seed color: brown