Habit: shrub, tree

Plant Height (m): 1-9 m

Elevation (m): 1000-1600 m

Distribution: China: Yunnan

Young Branch: pubescent

Terminal bud hairiness: sericeous

Leaf upper surface: glabrous

Leaf texture: leathery

Leaf lower surface: midrib hairy

Leaf length (cm): 5-9 cm

Leaf width (cm): 2-3.5 cm

Leaf shape: oblong-elliptic, oblong, elliptic

Leaf margin: serrulate

Leaf apex: acuminate

Leaf base: cuneate

Lateral vein: pairs: 7-9

Petiole length (mm): 4-7 mm

Petiole: glabrous, pubescent

Flower: solitary, 2-5 flowers clustered

Flower position: axillary

Flower diameter (cm): 2.5-3.5 cm

Pedicel length (cm): 0.6-1 cm

Pedicel hairiness: glabrous

Bractlet number: 2

Bractlet: early deciduous

Bractlet position: near the middle of pedicel

Bractlet shape: ovate

Sepal: persistent

Sepal number: 5

Sepal shape: broadly ovate

Sepal length (mm): 3-5 mm

Sepal hairiness: glabrous outside, margin ciliated, sericeous inside

Petal number: 7-8

Petal color: white

Petal shape: broadly obovate

Petal apex: round

Petal length (mm): 15-20 mm

Petal width (mm): 12-20 mm

Petal: basally slightly connate

Stamen length (mm): 8-13 mm

Filaments hairiness: glabrous

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

Ovary: glabrous, pubescent

Ovary shape: orbicular

Ovary locus: 3-locular

Style length (mm): 10 mm

Style hairiness: glabrous, pubescent at the lower part

Style: 3-cleft

Fruit shape: oblate, biorbicular

Fruit height (cm): 1-1.5 cm

Seed number per locule: 1

Seed shape: orbicular