Japan Flora: Dioecious tree; branches thick, reddish when young, often glaucescent, loosely or densely and irregularly prickly; leaves glabrous, 15-30 cm. long, the peti­oles about 3 cm. long, the leaflets snbsessile, broadly lanceo­late, 3.5-8 cm. long, 1-15(-2) cm. wide, gradually narrowed to an emarginate apex, pellucid-dotted, minutely toothed with a pellucid gland in each sinus; inflorescence a dense many-flowered terminal cyme; calyx-lobes minute; petals ob­long, about 2 mm. long. Ang.

Honshu (Tokaidd and Kinki Di str.), Shikoku, Kyushn; rare. s. Korea.

Korea Flora: Deciduous small tree. Height up to 15m. Twigs: Thick and sturdy, reddish when young. Thorns grow loosely or densely and develop irregularly. Leaves alternate, odd-pinnate compound leaves, hairless, 15-30cm long. 19-23 leaflets, sessile (without individual petioles). Leaflet size: 3.5-8cm × 1-1.5(2)cm, lanceolate, with acuminate apex and cuneate base. Glands develop on each serration. Petiole 3cm long. Flowers dioecious. cymes appear at branch tips with numerous flowers. sepals small, petals circular, 2mm long. Fruit distinctly splits into 3 carpels, 5mm in size. Seeds broadly elliptical, 4mm in size.

Flowering August

Fruiting November

Distribution: Southern Honshu to Okinawa in Japan; Jeju Island in Korea.