Originally published on Herbal Medicine from Your Garden
Greater celandine, Chelidonium majus, is also known as chelidonium, garden celandine, great celandine, nipplewort, swallow wort, tetterwort or just celandine, and bai qu cai in Chinese herbalism. It is not closely related to the lesser celandine, in fact it is closer to bloodroot (with which it shares the alternative name tetterwort). It’s also not related to the common milkweed (also called swallow-wort) or pleurisy root (aka orange or silky swallow-wort).
In comparison with its smaller namesake, greater celandine is quite a large plant, reaching 20 inches (a half meter) in height and spreading over an area of about 16 inches (40cm). It is a native of Europe, a hardy perennial happy in any soil, and will grow anywhere from full sun to deep woodland so long as the soil is moist. However, this versatility makes it an agressive invader which is difficult to eradicate once established. The best way to control it is to pull plants up before seeds start to ripen around July. As it’s also a common weed for the same reason, you may prefer to gather plants from the wild, taking care to avoid areas close to heavy traffic.
For herbal use, harvest leaves just as they come into flower, for use fresh or dried. Roots should be lifted in fall and dried before use. Latex (sap) needs to be collected from freshly cut stems at the time it is needed.
To make a standard infusion use 1 level teaspoon of chopped root or leaves to 250ml (1 US cup, 8 fl oz) boiling water, allowing to stand for 30 minutes before straining off and discarding the herb. This is taken cold at a dosage of no more than a half cup (125ml, 4 fl oz) a day.
The infusion is used internally for arthritis and rheumatism, asthma, skin cancer and stomach cancer, bronchitis and other coughs, inflammation of the gall bladder and bile duct, gout and hepatitis (jaundice). The bright orange latex should be mixed with vinegar before using it externally for corns, psoriasis, ringworm, warts and cancerous tumors – treat no more than 3 warts or small areas at one time, applying the lotion no more than 2-3 times a day.
As with all herbs grown for medicinal use, greater celandine should be grown organically to avoid corrupting its essential constituents with foreign chemicals. To find out more about growing organic herbs visit the Gardenzone.