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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.

If the diphtheritic pseudo-membrane appear in the nares, the officinal lime-water, injected every hour or second hour, is beneficial in consequence of its solvent action on pseudo-membranes.