Marsh harrier (Caltha palustris)

Other names: Marsh marigold, Kingcup

Marsh marigold, also known by the English names Marsh Marigold or Kingcup, is one of the first spring herbs. This plant is often found in moist and wetland environments such as floodplain forests, wetlands, vernal pools or stream banks. It belongs to the resinous family and is characterised by its bright yellow flowers. Its natural range is temperate and cooler regions of the northern hemisphere, including most of Europe, western Asia and North America.

Marsh marsh marigold is known primarily for its herbal medicine, but is also popular for ornamental purposes because of its showy flowers. Mudwort is considered a poisonous plant, but when properly treated it can become a useful ingredient in some herbal preparations. It has astringent and diuretic effects, so it is used to treat some skin diseases and kidney ailments. It was also formerly used in the manufacture of dyeing and tanning products. However, it is important to stress that consuming blatouche alone can be dangerous and should be done after consulting a specialist. In addition, it can be confused with other plants for its appearance, which can lead to poisoning. An epidemic increase in poisoning is registered in spring, when the marsh marsh marigold starts to flower and is very attractive at first sight.