Habit: shrub

Plant Height (m): 3 m

Elevation (m): 390-450 m

Distribution: China: Hainan

Young Branch: glabrous, pubescent, tenuous

Leaf upper surface: glabrous

Leaf texture: leathery

Leaf lower surface: glabrous, pubescent, midrib hairy

Leaf length (cm): 4-7 cm

Leaf width (cm): 1.5-3.5 cm

Leaf shape: oblong, oblong-lanceolate

Leaf margin: undulately serrate

Leaf apex: obtuse

Leaf base: cuneate

Petiole length (mm): 3-5 mm

Petiole: glabrous, pubescent

Flower: solitary

Flower position: axillary, subterminal

Flower diameter (cm): 0.8-1 cm

Pedicel length (cm): 0.15 cm

Bractlet number: 2

Bractlet shape: semiorbicular

Branchlet length (mm): 1-1.5 mm

Bractlet hairiness: glabrous on both sides, margin ciliated

Sepal: persistent

Sepal number: 5-6

Sepal shape: suborbicular

Sepal length (mm): 2.5-4 mm

Sepal width (mm): 3.5-5.5 mm

Sepal hairiness: glabrous on both sides, margin ciliated

Petal number: 5-6

Petal color: white

Petal shape: obovate, obovate-elliptic

Petal apex: round

Petal hairiness: glabrous on both sides

Petal: basally slightly connate

Stamen length (mm): 4 mm

Filaments hairiness: glabrous

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

Ovary: glabrous

Ovary locus: 3-locular

Relative length of stamens and styles: stamens longer than styles

Style number: 3

Style length (mm): 3 mm

Style: free

Fruit shape: oblate

Fruit height (cm): 1-1.5 cm

Seed shape: semiorbicular

Seed color: brown