Habit: shrub

Plant Height (m): 3 m

Distribution: other countries: Vietnam

Young Branch: glabrous

Leaf texture: thickly leathery

Leaf lower surface: glabrous

Leaf length (cm): 15-22 cm

Leaf width (cm): 6-11 cm

Leaf shape: elliptic

Leaf margin: comb-shaped sharply serrate

Leaf apex: obtusely pointed

Leaf base: auriculate-cordate, stem-clasping

Petiole length (mm): 3-5 mm

Flower: solitary

Flower position: axillary, subterminal

Flower diameter (cm): 7 cm

Pedicel: present

Pedicel length (cm): 1 cm

Bractlet number: 6-7

Bractlet: persistent

Bractlet shape: lunate, orbicular, ovate, semiorbicular

Branchlet length (mm): 1-5 mm

Bractlet hairiness: glabrous inside, glabrous outside

Sepal: leathery

Sepal number: 5

Sepal shape: ovate, suborbicular

Sepal length (mm): 7-11 mm

Sepal hairiness: glabrous outside, pubescent inside

Petal number: 8-13

Petal color: red

Petal shape: obovate, broadly obovate

Petal apex: round

Petal length (mm): 24-40 mm

Petal width (mm): 20-30 mm

Petal texture: fleshy, leathery

Petal: basally slightly connate

Stamen length (mm): 30 mm

Filaments hairiness: pubescent at the base of inner filaments, pubescent

Filaments: outer filaments completely connate into a long fleshy tube

Ovary: glabrous

Ovary shape: ovate

Ovary locus: 3-locular

Relative length of stamens and styles: equal

Style number: 3

Style length (mm): 25 mm

Style hairiness: glabrous

Style: free

Fruit rib: present

Fruit shape: orbicular