Greater Celandine
Fit with Sakarya: how well the plant suits the local climate (winter cold, humidity, summer heat). Risk Level: risk of loss from disease, pests or care. They are separate measures; a cold-sensitive but disease-resistant plant can be "Limited fit, Low risk".
Main Risk Factor
Risk of liver toxicity from incorrect or excessive internal use because of its alkaloids
Priority Action
Seek expert advice before any medicinal use; for external use avoid contact with the eyes and mucous membranes
Note
Chelidonium majus is a herbaceous perennial native to Europe and northern Anatolia. Known in Turkish folk medicine as 'temre otu', its yellow sap has traditionally been used on warts and skin complaints. Because of its alkaloids, internal use requires caution. Yellow flowers open in April–May and attract bees. It can establish itself in the garden on its own.
🌱 From the Garden — Personal Notes
It arrived in the garden on its own and has been here for 2 years. I haven't used it medicinally; I'm observing it. (translated from Turkish)