Euphor'bia corolla'ta, Flowering (Blooming) Spurge. -- The root U.S.P. 1820-1870; S. United States. Perennial herb, .6-1 M. (2-3 degrees) high; leaves lanceolate; flowers umbels, 5- (3-7-) forked, white; root many-headed, .5 M. (18') long, 5-25 Mm. (1/5-1') thick, blackish-brown, fissured, bark thick, white inside, sweet, bitter, acrid; contains glucoside, resin, euphorbon; yields milky juice when punctured. Diaphoretic (gr. 5; .3 Gm.), cathartic (gr. 10; .6 Gm.), emetic (gr. 20; 1.3 Gm.), expectorant (gr. 2-5; .13-.3 Gm.), vesicant; in infusion, decoction