kalopanax septemlobus

Kalopanax septemlobus, common names castor aralia, tree aralia, and prickly castor oil tree, is a deciduous tree in the family Araliaceae, the sole species in the genus Kalopanax. It is native to northeastern Asia, from Sakhalin and Japan west to southwestern China. It is called cìqiū (刺楸) in Chinese, eumnamu (음나무) in Korean, and harigiri (ハリギリ; 針桐) in Japanese.

The tree grows to 30 metres (98 ft) tall, with a trunk up to 1–1.5 metres (3.3–4.9 ft) diameter. The stems are often spiny, with stout spines ...