Senec'io au'reus, Senecio, Life Root Plant, Ragwort, Squaw-weed, N.F. -- The dried plant with not more than 10 p.c. of foreign organic matter; Eastern N. America. Perennial herb .3-.6 M. (1-2 degrees) high, nearly smooth, fluted, sparingly clothed with small leaves, also a basal rosette, and several yellow heads (corymb) at summit, white floccose when young, then glabrous; radical leaves petiolate, rounded, 5-7 Cm. (2-3') broad, crenate-dentate, cordate; stem-leaves lyrately pinnate, then pinnatifid, sessile; heads slender, 12-25 Mm. (1/2-1') broad, involucral scales in 2 series closely appressed; rays 10, bright yellow, disk flowers many, small, bearing a glabrous achene, white pappus; odor characteristically aromatic; taste bitter, astringent, acrid, pungent. Powder, dark green -- many twisted non-glandular hairs with thin walls and oily content; leaf tissue composed of chlorenchyma, epidermal cells, elliptical stomata; solvent: diluted alcohol; contains volatile oil, resin, bitter principle (senecin), tannin, ash 10 p.c. Stimulant, diuretic, emmenagogue, vulnerary; atonic conditions, amenorrhea, dysmenorrhea; popular with "Eclectics," Homeopaths, and American Indians. Dose, 3ss-1 (2-4 Gm.); 1. Fluidextractum Senecionis (67 p.c. alcohol), dose, 3ss-1 (2-4 Gm.); 1. Fluidextractum Senecionis (67 p.c. alcohol), dose, 3ss-1 (2-4 cc.). Decoction, Infusion, each 5 p.c., 3j-2 (30-60 cc.).