Among the many different types of knotweed there are not only edible (and very tasty) varieties, but also medicinal plants that have been used for centuries. Known as such are above all the meadow knotweed (Bistorta officinalis, also known as snakeroot) and the bird knotweed (Polygonum aviculare), which are primarily consumed in the form of tea or in tea blends.
Meadow knotweed tea helps with stomach problems
Knotweed tea
The dried leaves of the local meadow knotweed are used for infusions. The tea is said to help with stomach inflammation and other stomach problems as well as a sore throat as a gargling agent. In addition to the leaves, the rhizomes of the plant can also be used. Incidentally, the leaves are not only suitable for medicinal purposes, but can also be prepared as a kind of wild spinach.
Gathering time for meadow knotweed
Leaves and roots of the meadow knotweed can be collected from May to autumn. The leaves for infusions are dried in a dark and warm place, either by hanging them loosely or by spreading them out on a towel. Washed and sliced roots can also be dried in the same way. Meadow knotweed contains a lot of oxalic acid and should therefore be consumed with caution, especially by sensitive people, kidney patients and pregnant women. Oxalic acid levels increase as the year progresses.
Knotweed Tea
The annual knotweed can also be used both as a vegetable and for medicinal purposes. The young shoots as well as the leaves are a tasty vegetable not only for birds but also for humans. All above-ground parts of the plant can be processed as an infusion and used for various respiratory diseases. The ingredients of the bird knotweed promotes the expectoration of mucus and is therefore particularly suitable for catarrh. Furthermore, the tea can be used to rinse off inflammation in the mouth and throat, as well as to treat skin blemishes. The main ingredients are silicic acid and various tannins, especially gallotannins and flavonoids. All parts of the plant are collected during the flowering period.
tips
In addition to the two species described, the sorrel knotweed can also be used both as a vegetable and as a medicinal herb to treat mouth and skin infections and stomach problems.