Caulophyl'lum thalictroi'des, Caulophyllum, Blue Cohosh, Papoose (Squaw) Root, N.F. -- The dried rhizome and roots with not more than 3 p.c. of foreign organic matter, yielding not more than 4 p.c. of acid-insoluble ash; N. America (Canada, United States). Smooth, glaucous perennial, .6 M. (2 degrees) high, with large triternately compound leaf at summit, leaflets 3-5-lobed; flowers greenish-yellow. Rhizome horizontal, 7-25 Cm. (3-10') long, 5-15 Mm. (1/5-3/5') thick, large cup-shaped stem-scars above, curved tortuous, thin, tough, tangled or matted roots below often concealing rhizome, yellowish-gray; fracture tough, woody; odorless, sternutatory; taste bittersweet, acrid. Powder, light brown -- numerous starch grains, fragments of cork, tracheae, wood-fibers, tracheids, parenchyma; contains caulophylline, caulophyllin (resins) 12 p.c., leontin (saponin-like glucoside -- active principle). Antispassmodic, diuretic, emmenagogue, demulcent, sternutatory, sedative, oxytocic; hysteria, amenorrhea, spasmodic dysmenorrhea, uterine subinvolution (causing muscular contraction), arrests or produces abortion; the aborigines believed the infusion their best parturient, drinking for several weeks prior to labor. Dose, gr. 10-30 (.6-2 Gm.); 1. Fluidextractum Caulophylli (75 p.c.alcohol): Preps.: 1. Elixir Aletridis Compositum (fldext. 6.55 p.c.); 2. Elixir Heloniadis Composibum (fldext. 3.2 p.c.). Extract, gr. 2-5 (.13-.3 Gm.), Tincture, 25 p.c., 3j-2 (4-8 cc.); decoction, infusion, each 5 p.c., 3j-2 (30-60 cc.).