Rubus coreanus

Rubus coreanus, known as bokbunja, Korean blackberry, or Korean bramble, is a species of raspberry native to Korea, Japan, and China. It produces edible berries (not true berries in the botanical sense) that are fermented into bokbunja ju, a Korean fruit wine (although the majority of fruit commercially grown for producing this drink are actually Rubus occidentalis, native to North America). The wine made of bokbunja is called bokbunjaju (Korean: 복분자주).