Hysso'pus officiana'lis, Hyssop. -- S. Europe. Plant .3 M. (1 0) high, stem square, leaves 2.5 Cm. (1') long, punctate on both sides, flowers purplish-blue, stamens 4, exserted; contains volatile oil .5 p. c., bitter principle, resin, fat. Used in Biblical times as a cathartic, now as a carminative, stimulant, sudorific; for dyspepsia, amenorrhea, rheumatism, bruises, bronchitis, sore throat, chronic catarrhs. Dose, gr. 15-60 (1-4 Gm.); infusion, 5 p. c.; oil Xj-2 (.06-.13 cc.).