Asarum is a genus containing around 121 small, perennial species characterised by their kidney-shaped foliage and small red-brown flowers. Commonly known as wild gingers, these species have spicy-scented underground rhizomes. The leaves are oppositely arranged and grow from an underground rhizome and flowering occurs in spring. They are distributed in temperate areas with high species diversity in Eastern Asia and North America. This genus lies in the birthwort family, Aristolochiaceae.