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Tetterwort / Rosopas
Chelidonium majus L.
45.86, 15.9806
Field Notes
Description:
Greater celandine has an erect habit, and reaches 30 to 120 cm high. The leaves are lobed and wavy-edged (crenate), 30 cm long. When injured, the plant exudes a yellow to orange latex.
The flowers consist of four yellow petals, each about 1 cm long, with two sepals. A double-flowered variety occurs naturally. The flowers appear from late spring to summer in umbelliform cymes of about 4 flowers.
The seeds are small and black, borne in a long capsule. Each has an elaiosome, which attracts ants to disperse the seeds (myrmecochory).
Habitat:
It is native to Europe and western Asia and introduced widely in North America.
Notes:
The whole plant is toxic in moderate doses as it contains a range of isoquinoline alkaloids but there are numerous therapeutic uses when used at the correct dosage.
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