Greater Celandine
Chelidonium majus
Break the stem. The orange bleeds immediately. The plant has no hesitation.
Overview
Greater celandine announces what it is without subtlety. Break a stem anywhere on the plant and bright orange-yellow latex bleeds immediately from the wound — intensely coloured, caustic, acrid-smelling, the kind of thing that makes you understand in one sensory gesture that this plant is not neutral. The latex has been used directly on warts and verrucas for centuries, and this use has survived every revision of folk medicine because it works, in the impatient, chemical, slightly alarming way that a caustic latex applied to unwanted tissue tends to work. The plant grows at the base of old walls, in the shadow of buildings, in the disturbed soil of medieval settlements — a follower of human habitation, brought to Britain by the Romans and settled in alongside them.
Botanical Notes
A softly hairy perennial reaching 30–90cm with delicate, deeply lobed, blue-green leaves and small, bright yellow four-petalled flowers from April to October. The sap is bright orange-yellow throughout and bleeds abundantly from any cut surface. Found at the base of old walls, in shaded disturbed ground, and in hedgerow bases throughout Europe and Britain — consistently associated with old human habitation. The alkaloids — chelidonine, coptisine, berberine, and others — are isoquinoline alkaloids related to those of opium poppy; they have documented antispasmodic, antimicrobial, and cytotoxic activity.
Lore & History
The name celandine derives from the Greek chelidon — swallow — either because the plant flowers when swallows arrive and dies when they leave, or because swallows were said to use the juice to restore sight to their blind chicks. This story appears in Pliny and in Culpeper and in almost every herbal that mentions the plant, with the variation that sometimes it is the parent birds that apply the juice to their nestlings' eyes and sometimes it is the nestlings themselves who find and apply it. The detail shifts, but the swallow remains constant. The plant was used in European folk medicine for jaundice — its yellow colour read as a signature for liver conditions under the Doctrine of Signatures — and modern research has found hepatoprotective activity in controlled studies alongside the hepatotoxic risk in others. The plant holds both directions simultaneously.
Warnings
The fresh latex is caustic and should not contact eyes or mucous membranes — it causes severe irritation and inflammation. Do not apply to open wounds or large skin areas. Internal use carries real risk: the alkaloids cause liver damage with prolonged use, and several cases of serious hepatotoxicity following oral preparations are documented. Topical use on warts is the only application that can be considered with reasonable safety, and even then use sparingly and avoid surrounding skin. Avoid during pregnancy.