Buttercup Winter Hazel

Shrubs; young branches and terminal buds glabrous. Petiole 5–10 mm, slender, pubescent; leaf blade ovate-elliptic or broadly ovate, 3–6.5 × 2–3.5 cm, abaxially villous along lateral veins, adaxially glabrous, base somewhat asymmetrical, rounded or subcordate, margin serrate above middle of leaf, teeth mucronate, apex acute; lateral veins 6–8 on each side, the 2 lowermost with obscure tertiary veins. Inflorescence 1–2 cm, 2–5-flowered; peduncle short, glabrous; general bracts ovate-rounded, 0.8–1 cm, abaxially glabrous; floral bract broadly ovate, 7–8 mm, glabrous; bracteoles somewhat shorter than bract. Floral cup glabrous. Sepals triangular, glabrous, apex obtuse. Petals broadly obovate, 6–7 mm. Stamens 5–6 mm; disk scales not lobed, apex truncate. Ovary glabrous; styles 5–6 mm. Capsule 6–8 mm, glabrous. Fl. May–Jul, fr. Jul–Sep.

Taiwan [Japan].

Slopes and forests; 200--300 m.

Corylopsis matsudae Kanehira & Sasaki.