Polygonaceae Polygonum cuspidatum Sieb. and Zucc.
Source: Magness et al. 1971
Erect unarmed glabrous perennial with round-ovate leaves. The immature stems are edible and used especially by the Chinese in salads or cooked as a potherb. The long succulent young stems can be produced in the field or grown under glass. A crop grown under glass is under high humidity in water saturated soil and harvested continuously. Plants root very rapidly. This is a close relative to Smartweed.
Use: Mainly in salads.
Part of plant consumed: Immature stems.