Japan Flora: Deciduous tree, with dense reddish stellate scales while young, grayish after­ward, the branches rather thick; leaves rounded-obovate to broadly ovate, 10-20 cm. long, 6-15 cm. wide, acute, rounded at base, shallowly 3-fid, sometimes entire or undulate, 3-nerved, with parallel vein lets, pale yellowish green beneath with yel­low sessile glands, 2 glands just above the base, the petioles rather long; inflorescence a panicle, &，20 cm. long, the branches elongate in the staminate; staminate flowers with calyx about 3 mm. long and numerous stamens 6-7 mm. long; pistillate flowers short-pedicellate on shorter branches of the panicles; capsules trigonous-globose, about 7 mm. across, densely lepidote and with yellowish brown glandular dots, and sparsely armed with soft spinelike protuberances, densely stellate-pilose while young, 3-valved, the valves bifid; seeds dark brown, about 4 mm. long, obscurely tuberculate.  June. Thickets and thin woods in lowlands.

Honshu, Shi­koku, Kyushu; common.  Ryukyus, Formosa, China, and Korea

 

Korea Flora: Deciduous small tree up to 10m, winter buds naked, terminal larger than later buds, 10-13mm long with dense reddish stellate scales while young, grayish afterward, leaf scars round; leaves alternate, broadly ovate, 10-20cm × 6-15cm, acute, rounded at base, shallowly 3-fid, entire, 3-nerved, pale yellowish green beneath with yellow sessile glands, the petioles rather long; flowers dioecious, inflorescence a panicle, 8-20 cm. long, the branches elongate in the staminate; staminate flowers with 3-4 calyx and 50-80 stamens 10 mm. long; pistillate flowers a few with 1 bract, calyx 3-5, carpels 3; capsules trigonous-globose, about 7 mm. acrosswith yellowish brown glandular dots, and armed with soft spinelike protuberances, densely stellate-pilose while young, 3-valved, the valves bifid; seeds dark brown, globose about 4 mm. long, obscurely tuberculate.

Flowering late June to mid July (late Augus in Haenam)
Fruting mid Aug to early Oct
Distribution Taiwan, Japan west Honshu to Ryukyu through Kyushu and Shikoku; Chungcheonnam-do, Jella-do, Gyongsannam-do, Jeju
Ecological characteristics Shade intolerant in logging or disturbed areas, fast growing pioneer species.