6. A variety of the sour cherry(Prunus cerasus var. austera) having double flowers and fruit with dark red skin.

• 欧洲酸樱桃酸樱桃树（欧洲酸樱桃樱属）的一个欧洲栽培品种，结红色酸果，可做黑樱桃酒收藏指正