Cowslip (Tanacetum vulgare)
Other names: Tansy
Harm score: 1 (Natural substances)
The common vetch, also known as Tansy, is a perennial herb that is native to northern Europe and Asia. Until recently, this relatively popular medicinal herb with a tall, branching stem and small, golden-yellow flowers is found in the Czech Republic mainly on hillsides, meadows, roadsides and uncultivated land. Tansy is known for its strongly aromatic leaves, which give off a characteristic scent.
Due to its active substances, the common tansy is a component of many products. In folk medicine, tansy is used for its ability to relieve pain, improve digestion, suppress cramps, and treat parasitic infections. Its essential oils are often used in cosmetics, especially in products for problematic skin. It is also a component of some food products as well as alcoholic beverages such as absinthe. However, it should be noted that tansy contains thujone, a substance that is toxic in high concentrations. Caution is therefore required when consuming it. Its strong scent also serves as an insect repellent, which is used mainly in the manufacture of repellents.