Habit: tree

Plant Height (m): 7-10 m

Elevation (m): 500-1100 m

Distribution: other countries: Vietnam

Young Branch: pubescent, tenuous

Leaf upper surface: midrib hairy

Leaf texture: leathery

Leaf lower surface: pubescent

Leaf length (cm): 6.5-11 cm

Leaf width (cm): 2-3.7 cm

Leaf shape: oblong, oblong-lanceolate

Leaf margin: serrulate

Leaf apex: acuminate

Leaf base: cuneate

Lateral vein: pairs: 10-12

Petiole length (mm): 5-7 mm

Petiole: pubescent

Flower: solitary, 2-5 flowers clustered

Flower position: axillary

Pedicel: present

Pedicel length (cm): 6-7 cm

Pedicel hairiness: pubescent

Bractlet number: 0

Sepal: leathery, persistent

Sepal number: 4-5

Sepal shape: semiorbicular

Sepal length (mm): 1-2 mm

Sepal width (mm): 2-3 mm

Sepal hairiness: glabrous inside, pubescent outside

Petal number: 7-9

Petal color: coral-red

Petal shape: obovate, suborbicular

Petal apex: retuse, round

Petal length (mm): 5 mm

Petal hairiness: glabrous inside, pubescent outside

Stamen length (mm): 8 mm

Filaments hairiness: glabrous

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

Ovary: pubescent

Ovary shape: ovate

Ovary locus: 3-locular

Style number: 3

Style hairiness: pubescent at the lower part

Style: free

Fruit shape: ovate

Fruit height (cm): 2.8 cm

Fruit diameter (cm): 2-2.5 cm

Pericarp: pubescent

Seed color: castaneous

Seed hairiness: glabrous