Senecio jacobaea
| Senecio jacobaea | |
| Light: |   |
| Moisture: |  |
| Hardiness: | 5 |
| Soil pH: | 5.6-8.4 |
| Self Pollinated | |
| Height: | 3' |
| Width: | 2' |
| Blooms: | Early Summer-Mid Fall |
| Native to: | |
| Shelter | |
| Medicinal Rating: | |
| Tea: | Yes |
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Senecio jacobaea (common name: ragwort)
Propagation: A noxious weed, it doesn't need any help in spreading itself about.
Cultivation: Succeeding on all but the poorest soils, this plant is a declared noxious weed in Britain spreading freely by seed. It should not be cultivated other than in controlled conditions for scientific research. Ragwort can be eradicated by pulling it up just before it comes into flower, or by cutting it down as the flowers begin to open (this latter may need to be repeated about six weeks later)[1].
Ragwort is a good food plant for the caterpillars of many butterfly and moth species, and is one of only two species that provide food for cinnabar moth caterpillars.
Range: Europe, including Britain, south and east from Scandanavia to N. Africa, Caucasua and W. Asia.
Habitat: Waste ground and pastures on all but the poorest soils[1][2]. It is often only an annual[2].
Medicinal: The plant is astringent, diaphoretic, diuretic, emmenagogue and expectorant[3][4]. The plant is harvested as it comes into flower and is dried for later use[3]. Use with caution[4], when applied internally it can cause severe damage to the liver[3]. See also the notes above on toxicity.
An emollient poultice is made from the leaves[1].
The juice of the plant is cooling and astringent, it is used as a wash in burns, sores, cancerous ulcers and eye inflammations[1]. It makes a good gargle for ulcerated mouths and throats and is also said to take away the pain of a bee sting[1]. Caution is advised here since the plant is poisonous and some people develop a rash from merely touching this plant[K].
A decoction of the root is said to be good for treating internal bruises and wounds[1].
A homeopathic remedy is made from the plant[3]. It is used in the treatment of dysmenorrhoea and other female complaints, internal haemorrhages and other internal disorders[3].
Usage: A good green dye is obtained from the leaves, though it is not very permanent[1][5].
A yellow dye is obtained from the flowers when alum is used as a mordant[1][5][6]. Brown and orange can also be obtained[6].
Pollinators: Bees, flies, lepidoptera, self
Soil: Can grow in light, medium, and heavy soils.
Wind: Tolerates maritime wind exposure
Seed Ripens: Mid Summer-Mid Fall
Flower Type: Hermaphrodite
Heavy Clay: Grows in heavy-clay soils.
Known Hazards: All parts of the plant are poisonous[1][7]. The plant contains pyrrolizidine alkaloids, in isolation these substances are highly toxic to the liver and have a cumulative affect even when the whole plant is consumed[8][9].
Links
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Grieve, Margaret. A Modern Herbal. Penguin, 1984.
- ↑ 2.0 2.1 Clapham, Arthur and Tom Tootin, Edmund Warburg. Flora of the British Isles. Cambridge University Press, 1962.
- ↑ 3.0 3.1 3.2 3.3 3.4 Launert, Edmund. Edible and Medicinal Plants. Hamlyn, 1981.
- ↑ 4.0 4.1 Lust, John. The Herb Book. Bantam Books, 1983.
- ↑ 5.0 5.1 Sowerby, John. The Useful Plants of Great Britain. 1862.
- ↑ 6.0 6.1 Grae, Ida. Nature's Colors. MacMillan Publishing, 1974.
- ↑ Stary, Frantisek. Poisonous Plants. Hamlyn, 1983.
- ↑ Frohne, Dietrich and Hans Pfänder. J. A Colour Atlas of Poisonous Plants. Timber Press, 1984.
- ↑ Chevallier, Andrew. The Encyclopedia of Medicinal Plants. Dorling Kindersley, 1996.