This is an invasive plant native to Britain, Russia and middle eastern Europe. The leaves, roots and stalks of this weed are used in herbal medicine.

Medicinal Properties of Knotgrass

It contains compounds such as tannins, namely catechin and gallic acid, which have potent astringent and haemostatic (slows bleeding) properties. It also contains silicic acid which is a source of the mineral silicia, which helps support the immune system in cleansing the body of toxins and improves the elasticity and strength of connective tissue. It also contains flavanoids such as quercetin, which is anti-inflammatory as well as mucilage and polyphenolic acids.

Knotgrass Herbal Remedies

Historically Knotgrass has been used to treat a number of conditions including:

Arthritis (all types)
Bleeding – internal and external
Carpal tunnel syndrome
Diarrhoea
Gout
Heavy periods
Nose bleeds
Piles

Other Knotgrass Information

Knotgrass is often found as a loose dried herb and is mainly available in tincture for internal use. It is a herb that can be taken long-term with no known problems, and is sometimes found in herbal combination formulas to help with arthritic conditions.

Side Effects of Knotgrass

Safety during pregnancy and lactation has not been sufficiently studied and should therefore be avoided.

At the time of writing there are no well known side effects, drug interactions or contra-indications.