Caltha palustris L.
Caltha palustris
Caltha palustris, also known as marsh-marigold or kingcup, is a small to medium-sized perennial herbaceous plant. It grows in marshes, fens, ditches, and wet woodland in temperate regions of the Northern Hemisphere. The plant has hollow, erect or decumbent flowering stems and kidney-shaped leaves with a heart-shaped foot. Its flowers are brightly colored, ranging from yellow to white or magenta, and bloom between April and August.
Details
Ranunculales
Ranunculaceae
Caltha
The plant contains several active substances, with the most toxic being protoanemonin. This compound can cause convulsions, burning of the throat, vomiting, bloody diarrhea, dizziness, and fainting if ingested in large quantities. Contact with the skin or mucous membranes can cause blistering or inflammation.
The plant is used in traditional medicine for its medicinal properties. It has been known to be toxic if ingested raw but edible when cooked. Young leaves or buds are often boiled and served with butter and vinegar. The plant is also used as an ornamental in gardens and wildlife habitats.
April to August
10–80 centimeters
Yellow, white, or magenta
Marshes, fens, ditches, and wet woodland in temperate regions of the Northern Hemisphere
Info
Pannon Flora Ltd. was founded on December 13, 1999, by Gábor Janik, who retains 95% ownership. Janik holds an MSc in Horticulture from the University of Horticultural Sciences (1986) and an Advanced Professional English Certification from the College of International Trade (1990). The company specializes in bird feed production and export, primarily serving markets in Italy, Germany, the Netherlands, and the UK, alongside cultivating and distributing imported/exported horticultural seeds. It maintains exclusive partnerships with JOEUN Seed (South Korea) and Takii Europe (Japan), a leader in professional seed breeding and production. Pannon Flora collaborates with certification bodies such as NÉBIH (National Food Chain Safety Office), MERT Kontroll, and SGS Hungary to ensure compliance and quality. The company works with approximately 400 Hungarian growers, ranging from small-scale producers (under 5 hectares) to mid-sized farms and large-scale agricultural enterprises. This profile emphasizes agribusiness expertise, technical partnerships, and operational scalability tailored to international client needs.
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