Korea Flora: Deciduous shrub. Height 2-3m. Winter Buds and Stems: Buds ovate with brown bud scales. Branches sparsely divided, densely covered with thin long prickles, grayish-brown, especially numerous below petioles. Leaf scars semicircular with 5-6 vascular bundle scars. Leaves: Alternate, palmately compound; leaflets (3)4-5, elliptic-spathulate or oblong, shortly acuminate at apex, cuneate at base, 6-12cm × 2-4cm. Upper surface with scattered hairs; lower surface with brown hairs along veins when young; margins with sharp double serrations. Petiole 3-8cm long, heavily armed with prickles. Flowers: Umbels solitary at branch tips or branching from base. Main peduncle 2.5-3cm long, pedicels 6-8mm long. Flowers purplish-yellow; flower stalks 10-20mm long, glabrous except for dense hairs at branching points. Style 1-1.8mm long, completely united with slightly 5-lobed stigma. Fruit and Seeds: Globose, glabrous, 8-10mm in diameter.

Sporophyte Chromosome Number: 48
Flowering Period: Mid-July to early August
Fruiting Period: October
Distribution: Three Northeastern Provinces and Northern China, Far Eastern Russia, Hokkaido (Japan); North and South Hamgyeong-do, North and South Pyeongan-do, Northern Gyeonggi-do, Gangwon-do (Korea)
Ecological Characteristics: Grows at elevations above 700m and suffers from heat stress, making it poorly adapted to lower elevations.