Habit: shrub, tree

Plant Height (m): 2-10 m

Elevation (m): 110-750 m

Distribution: China: Fujian, Guangdong, Guangxi, Hong Kong, Jiangxi, Zhejiang

Young Branch: glabrous

Leaf upper surface: glabrous

Leaf texture: leathery

Leaf lower surface: glabrous, glandular

Leaf length (cm): 7-16 cm

Leaf width (cm): 3-6 cm

Leaf shape: oblong-elliptic, elliptic

Leaf margin: serrulate

Leaf apex: acuminate, acute

Leaf base: broadly-cuneate, cuneate

Petiole length (mm): 6-12 mm

Petiole: glabrous, sulcate

Flower: solitary

Flower position: axillary, subterminal

Flower diameter (cm): 6-10 cm

Pedicel: absent

Bractlet number: 7-13

Bractlet: persistent

Bractlet shape: semiorbicular, suborbicular

Bractlet hairiness: glabrous inside, pubescent outside

Sepal: persistent

Sepal number: 7-13

Sepal shape: suborbicular, semiorbicular

Sepal length (mm): 3-20 mm

Sepal hairiness: glabrous inside, pubescent outside

Petal number: 6-8

Petal shape: obovate

Petal apex: retuse

Petal length (mm): 35-65 mm

Petal width (mm): 20-40 mm

Stamen length (mm): 15 mm

Filaments hairiness: glabrous

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

Ovary: pubescent

Ovary shape: orbicular

Ovary locus: 3-locular, 4-locular, 5-locular

Relative length of stamens and styles: equal

Style number: 3, 4, 5

Style length (mm): 15 mm

Style hairiness: pubescent at the lower part

Style: free

Fruit shape: suborbicular

Fruit diameter (cm): 7-12 cm

Seed shape: semiorbicular

Seed color: brown

Seed hairiness: glabrous