Description
Polygonum rigidum (also called Rigid Knotweed, among many other common names) is an annual or perennial herbaceous plant native to North America. It has a slender stem, reaching up to 60 cm in height, and oval-shaped leaves. It grows in moist soils, such as in meadows, ditches, and disturbed areas.
Uses & Benefits
Polygonum rigidum is used as an ornamental plant in gardens and as a medicinal plant for treating various ailments such as fever, skin diseases, and digestive problems.
Flower, Seeds and Seedlings
The flowers of Polygonum rigidum are small, white or pink and clustered in dense heads. The seeds are small and black, with a single seed per head. The seedlings are small and have a single cotyledon.
Where to Find Polygonum rigidum
Polygonum rigidum is native to Europe and can be found in the wild in France, Germany, Italy, and Spain.