Polygonum.—Water Pepper.
Botanical name:
Classic texts: King's 1898.
Polygonum arifolium L.
Engl.: halberdleaf tearthumb, halbert-leaved tear-thumb, hastate knotgrass, sickle grass.
Bot. syn.: Tracaulon arifolium (L.) Raf.
Henriette's Herbal Homepage
Welcome to the bark side.
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.