Sambu'cus canaden'sis or S. ni'gra, Sambucus, Elder Flowers, N.F. -- Caprifoliaceae. The air-dried flower with not more than 2 p.c. of foreign organic matter; N. America (damp places). Semi-shrubby perennial, slightly woody, 1.5-3 M. (5-10 degrees) high; stem branching, smooth, fruit, ovoid drupe, 6 Mm. (1/4') long, red then purplish-black. Flowers, small 2-3 Mm. (1/12-1/8') broad, shriveled; corolla cream-colored, brownish-yellow, rotate, campanulate, 5-lobed; stamens 5, anthers yellow, pollen with punctate markings; odor faintly sweet, aromatic; taste slightly bitter. Powder, brownish-yellow -- soon becomes worm eaten unless a preservative (sodium chloride) is added; contains volatile oil .3-.5 p.c., resin, fat, wax, mucilage, tannin. Stimulant, carminative, diaphoretic, sudorific, diuretic, alterative, flavoring; used mostly externally in fomentation, poultice, and ointment; rheumatism, erysipelas, abscesses, etc.; the water for cooling application to the eyes. Dose, 3ss-1 (2-4 Gm.); 1. Fluidextractum Stillingiae Compositum, 12.5 p.c. 2. Species Laxative, 25 p.c. S. ni'gra. -- Europe; tree, 4.5-6') thick, compound cymes smaller than the preceding. S. Eb'ulus, Dwarf Elder. All parts with strong, disagreeable odor, bitterish, acrid taste, the 4-seeded fruit, resembling elderberries; laxative; S. made'rensis, Madeira; less aromatic than S. nigra.