Sheep Sorrel, Rumex acetosella, is an ingredient of the Essiac anticancer formula. Succulent young leaves are eaten raw in salad or dried and used as a tea. Sorrel, Sheep is native to Europe and Asia. Prefers full sun and regular garden soils. Drought and frost resistant. A perennial ground cover, growing to 0.6m x 0.3m. Also see Rene’s Classic Tea.