Habit: shrub, tree

Plant Height (m): 2-5 m

Elevation (m): 110-420 m

Distribution: China: Guangxi

Distribution: other countries: Vietnam

Young Branch: glabrous, stout

Leaf upper surface: glabrous

Leaf texture: leathery

Leaf lower surface: glabrous, glandular

Leaf length (cm): 14-20 cm

Leaf width (cm): 5-8 cm

Leaf shape: oblong-elliptic, elliptic

Leaf margin: serrulate

Leaf apex: caudate

Leaf base: rounded

Lateral vein: pairs: 11-13

Petiole length (mm): 9-13 mm

Petiole: glabrous, sulcate

Flower: solitary, 2-5 flowers clustered

Flower position: axillary, subterminal

Pedicel length (cm): 5-7 cm

Bractlet number: 7-8

Bractlet position: covers the pedicel

Bractlet shape: semiorbicular

Bractlet hairiness: glabrous outside, sericeous inside, margin ciliated

Sepal: leathery

Sepal number: 5

Sepal shape: broadly ovate, semiorbicular

Sepal length (mm): 4-5 mm

Sepal width (mm): 5-7 mm

Sepal hairiness: glabrous outside, margin ciliated, sericeous inside

Petal number: 7-9

Petal color: golden-yellow

Petal shape: suborbicular, obovate-elliptic, broadly obovate

Petal apex: round

Petal texture: more or less fleshy

Petal hairiness: pubescent inside

Petal: basally slightly connate

Stamen length (mm): 20-35 mm

Filaments hairiness: glabrous

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

Ovary: glabrous

Ovary shape: ovate

Ovary locus: 3-locular

Relative length of stamens and styles: equal

Style number: 3

Style length (mm): 20-35 mm

Style: free

Fruit shape: oblate, flat triorbicular

Fruit height (cm): 2-3 cm

Fruit diameter (cm): 3.5-6 cm

Seed number per locule: 1, 2

Seed shape: semiorbicular, suborbicular

Seed color: brown

Seed hairiness: glabrous