Habit: shrub, tree
Plant Height (m): 1-5 m
Distribution: other countries: Japan
Young Branch: glabrous, pubescent
Leaf upper surface: glabrous, midrib hairy
Leaf texture: leathery
Leaf lower surface: glabrous, midrib hairy
Leaf length (cm): 3.5-6 cm
Leaf width (cm): 1.5-2.5 cm
Leaf shape: oblong-elliptic, elliptic
Leaf margin: serrulate
Leaf apex: acute, obtuse
Leaf base: broadly-cuneate, cuneate
Lateral vein: pairs: 6
Petiole length (mm): 3-5 mm
Petiole: glabrous, pubescent
Flower: solitary
Flower position: subterminal
Flower diameter (cm): 3.5-5 cm
Pedicel: absent
Bractlet number: 8-10
Bractlet: deciduous after anthesis
Bractlet shape: lunate, semiorbicular, suborbicular
Branchlet length (mm): 2-13 mm
Bractlet hairiness: pubescent outside, margin ciliated
Sepal: deciduous after anthesis
Sepal number: 8-10
Sepal shape: suborbicular, semiorbicular
Sepal length (mm): 2-13 mm
Sepal hairiness: margin ciliated, pubescent outside
Petal number: 5-7
Petal color: red, white
Petal shape: obovate, obovate-spatulate
Petal apex: retuse
Petal length (mm): 20-35 mm
Petal width (mm): 15-25 mm
Stamen length (mm): 15 mm
Filaments: the base of outer filaments connate, not forming a tube
Ovary: pubescent
Ovary shape: orbicular
Ovary locus: 3-locular
Relative length of stamens and styles: stamens longer than styles
Style number: 3
Style length (mm): 10-12 mm
Style hairiness: pubescent at the lower part
Style: 3-parted, but not to the base
Fruit shape: suborbicular
Fruit diameter (cm): 1.5-2 cm
Seed number per locule: 1, 2
