Spige'lia marylan'dica, Spigelia, Pinkroot. -- The dried rhizome and roots with not more than 10 p.c. of stems or other foreign matter, U.S.P. 1820-1910; United States, Maryland, southward. Perennial herb, .3-.6 M. (1-2 degrees) high, purplish; leaves sessile, entire, ovate-lanceolate; flowers large, scarlet red, on one side of stem above the leaves; fruit 2-seeded. Rhizome, horizontal, 1.5-5 Cm. (3/5-2') long, 2-5 Mm. (1/12-1/5') thick, dark brown, cup-shaped scars above, numerous roots beneath; fracture short, brittle, 3 zones -- pith, wood, bark; odor slightly aromatic; taste bitter, pungent. Powder, grayish-brown -- starch grains, lignified tracheae, tracheids, bast-fibers, reddish-brown epidermal cells; solvents: diluted alcohol, boiling water; contains bitter principle (?), spigeline, volatile oil, resins, tannin, wax, fat, gum, ash 8-10 p.c. Anthelmintic, toxic, mydriatic; large doses narcotic poison; to destroy round worms, usually associated with senna or calomel, or followed by Epsom salt. Poisoning: Vertigo, dilated pupils, dry throat, convulsions, delirium -- diffusible stimulants: ammonia, brandy, amyl nitrite, atropine, digitalis, Dose, 3ss-2 (2-8 Gm.); children gr. 10-20 (.6-1.3 Gm.); Fluidextract (diluted alcohol); Compound Infusion (Worm Tea), 15 Gm. + senna 10, fennel 10, manna 30, water q.s. 500 cc., 3ij-5 (60-150 cc.). S. anthel'mia, Demerara Pink Root, Worm Grass. -- W. Indies. Used for a long time by the native Indians as a vermifuge and narcotic; fresh root has nauseous odor, is bitter, acrid, and kills cattle. Phlox' caroli'na, Farolina or Georgia Pink. -- This has a knotty and lighter colored rhizome with a central pith; it is also an anthelmintic, as is P. glaber'rima.