Selenice'reus grandiflo'rus, Cactus Grandiflorus, Night Blooming Cereus, N.F. -- Cactaceae. The fresh succulent stem of the wild growing plant; Mexico, W. Indies, cultivated. Small shrub, .3-1 M. (1-3 degrees) high; stem green, fleshy, branching; flowers white, sessile, large, fragrant, opening at night, petals and stamens numerous; fruit white berry, size of an egg. Stem (drug) in pieces of varying length, 1.5-4 Cm. (3/5-1 3/5') thick, 5-9-angled, angles 2 Cm. (4/5') apart with tufts of 9-12 acicular spines, each 5 Mm. 1/5') long, and same number of bristles 1 Cm. (2/5') long, branched roots at irregular intervals; odor strong, herby; taste acidulous, mucilaginous; solvent: alcohol; contains cactine, acid resinous glucoside, resins, calcium oxalate. Cardiac stimulant (tonic), diuretic, similar to digitalis, but non-cumulative, counter-irritant; cardiac palpitation and weakness, heart failure from valvular disease, angina pectoris, aortic regurgitation, dropsies, low fevers, Graves' disease, tobacco toxemia, sexual exhaustion. Dose, gr. 5-10 (.3-.6 Gm.); 1. Tinctura Cacti Grandiflori, 50 p.c. (Alcohol), dose, mxv-30 (1-2 cc.). Decoction, 5 p.c., 3j-2 (4-8 cc.); Fluidextract.