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The biennial form is that which is considered officinal.

June, July.—A well-known officinal anthelmintic, and a showy plant.

The long horizontal aromatic roots a substitute for officinal Sarsaparilla.

A name popularly given to the officinal valerian, and to some other plants.

In a large number of cases nothing more is necessary than the use of means to check the action of the bowels, and which should consist of absorbents or antacids, astringents, and opiates as they are contained in the officinal chalk mixture, with the addition of tincture of kino or catechu and a small proportion of laudanum.