KOKUWA. Japan and Manchuria. This vine is common in all the valleys of Yesso and extends to central Nippon. It is vigorous in growth and fruits abundantly. The fruit is an oblong, greenish berry about one inch in length; the pulp is of uniform texture, seeds minute and skin thin. When fully ripe it possesses a very delicate flavor. Sturtevant, Notes on edible plants, 1919.
- Penhallow, D. P. Amer. Nat. 16:120. 1882. (A. arguta)