Common Name Korean barberry "Rubin"
Light sun to part
Berberis koreana is native to Korea and Eastern Asia and has been recently used as an ornamental tree in the United States. The Berberis genus however, ranges widely in Temperate zones of North America and Eurasia.
Fruit are raw or cooked. The fruits are about 5mm long. Young leaves can also be cooked. Berberis berries are edible but sour and are used in jams and jellies. However eating high quantities of B. koreana berries can result in adverse side effects.
Berberine, universally present in rhizomes of Berberis species, has marked antibacterial effects. Since it is not appreciably absorbed by the body, it is used orally in the treatment of various enteric infections, especially bacterial dysentery. It should not be used with Glycyrrhiza species (Liquorice) because this nullifies the effects of the berberine.
A yellow dye is obtained from the root.