Habit: shrub, tree

Plant Height (m): 2-7 m

Elevation (m): 200-1000 m

Distribution: China: Guangdong, Guangxi, Hainan, Hunan, Jiangxi

Distribution: other countries: Laos, Vietnam

Young Branch: glabrous, stout

Leaf upper surface: glabrous

Leaf texture: leathery

Leaf lower surface: glabrous, glandular

Leaf length (cm): 8-15 cm

Leaf width (cm): 3-5.5 cm

Leaf shape: oblong-elliptic, oblong, elliptic

Leaf margin: serrulate

Leaf apex: acuminate, acute, obtusely pointed

Leaf base: broadly-cuneate, cuneate, obtuse

Petiole length (mm): 6-10 mm

Petiole: glabrous, sulcate

Flower: solitary, 2-5 flowers clustered

Flower position: subterminal

Flower diameter (cm): 2-3.5 cm

Pedicel: absent

Bractlet number: 9-10

Bractlet shape: orbicular, semiorbicular

Branchlet length (mm): 2-10 mm

Bractlet hairiness: glabrous inside, pubescent outside

Sepal number: 9-10

Sepal shape: orbicular, semiorbicular

Sepal length (mm): 2-10 mm

Sepal hairiness: glabrous inside, pubescent outside

Petal number: 7-10

Petal color: white

Petal shape: obovate

Petal length (mm): 15-20 mm

Petal width (mm): 10-15 mm

Petal: basally slightly connate

Stamen length (mm): 15 mm

Filaments hairiness: glabrous

Filaments: the base of outer filaments connate into a short tube

Ovary: pubescent

Ovary shape: orbicular

Ovary locus: 3-locular

Style number: 3

Style length (mm): 13 mm

Style hairiness: pubescent

Style: free

Fruit shape: oblate, orbicular

Fruit diameter (cm): 2-4 cm

Seed shape: semiorbicular

Seed color: castaneous

Seed hairiness: glabrous