Ragwort

It has many names but I know it as Common Ragwort, Jacobaea vulgaris or Senecio jacobaea.

Oxytropis sericea - The Panda's Thumb 2010

Tansy Ragwort (Senecio jacobaea L.), a plant lethal to grazing animals, by lying eggs in the developing flower buds.

Biological Control May Beget Exotic Invaders 2006

'Ragwort has to do with cyclic diesters, the most toxic of pyrrelizidine alkaloids, and it causes the symptoms shown by the filly, the digestive tract upset, the abdominal pain and ataxia, the lack of control of the legs.'

Second Wind Francis, Dick 1999

England, being especially frequent and virulent on the Ragwort

The Culture of Vegetables and Flowers From Seeds and Roots 16th Edition Sutton and Sons

The Ragwort (_Senecio Jacoboea_) is a very common plant in our meadows, and moist places, closely allied to the [458] Groundsel, and well known by its daisy-like flowers, but of a golden yellow colour, with rays in a circle surrounding the central receptacle, and with a strong smell of honey.

Herbal Simples Approved for Modern Uses of Cure William Thomas Fernie

Chemically the active principle of the [459] Ragwort is "senecin," a dark resinous substance, of which two grains may be given twice or three times in the day.

Herbal Simples Approved for Modern Uses of Cure William Thomas Fernie

Ragwort, or Ragweed, is a corruption of Ragewort, as expressing its supposed stimulating effects on the sexual organs.

Herbal Simples Approved for Modern Uses of Cure William Thomas Fernie

The Ragwort was formerly thought to cure the staggers in horses, and was hence named Stagger wort, or because, says Dr. Prior, it was applied to heal freshly cut young bulls, known as Seggs, or Staggs.

Herbal Simples Approved for Modern Uses of Cure William Thomas Fernie

In Ireland the Ragwort is dedicated to the fairies, and is known as the Fairies 'Horse, on the golden blossoms of which the good little people are thought to gallop about at midnight.

Herbal Simples Approved for Modern Uses of Cure William Thomas Fernie

In the middle of June, the Ragwort, a composite flower with yellow heads, and about one-half to two feet high, abounds in wet places by the side of running streams.

Picturesque Quebec : a sequel to Quebec past and present 1868