Habit: shrub

Plant Height (m): 1-4 m

Elevation (m): 160-620 m

Distribution: China: Hubei, Shannxi, Sichuan

Young Branch: pubescent

Leaf upper surface: glabrous

Leaf texture: thickly leathery

Leaf lower surface: glabrous, pubescent, glandular

Leaf length (cm): 3.5-5 cm

Leaf width (cm): 2-3 cm

Leaf shape: oblong-elliptic, elliptic

Leaf margin: serrulate, sharply serrate

Leaf apex: acute, caudate

Leaf base: broadly-cuneate, obtuse

Lateral vein: pairs: 6-7

Petiole length (mm): 5-10 mm

Petiole: glabrous, pubescent

Flower position: axillary, subterminal

Pedicel: absent

Bractlet number: 7-8

Bractlet: deciduous after anthesis

Bractlet shape: lunate, ovate, semiorbicular

Bractlet hairiness: glabrous inside, pubescent outside, margin ciliated

Sepal: leathery, deciduous after anthesis

Sepal number: 7-8

Sepal hairiness: glabrous inside, margin ciliated, pubescent outside

Petal number: 5-6

Petal color: white

Petal shape: obovate

Petal apex: retuse

Petal length (mm): 15 mm

Petal width (mm): 15-25 mm

Stamen length (mm): 7-10 mm

Filaments: lower half of outer filaments connate into a short tube

Ovary: pubescent

Ovary shape: suborbicular

Style hairiness: glabrous

Style: free, 3-parted to near the base

Fruit shape: oblate

Fruit height (cm): 2 cm

Fruit diameter (cm): 1.5 cm

Seed shape: semiorbicular

Seed color: castaneous