COMMON NAMES. Gravel-root, Joe-pie, Trumpet-weed.
    MEDICINAL PART. The root.
    Description. -- This is a herbaceous plant, with a perennial, woody root, with many long dark-brown fibres, sending up one or more solid green, sometimes purplish, stems, five or six feet in height. The leaves are oblong-ovate or lanceolate, coarsely serrate, and from three to six in a whorl. The flowers are tubular, purple, often varying to whitish.
    History. -- Queen of the Meadow grows in low places, dry woods or meadows, in the Northern, Western, and Middle States of the American Union, and flowers in August and September. The root is the officinal part. It has a smell resembling old hay, and a slightly bitter, aromatic taste, which is faintly astringent but not unpleasant. It yields its properties to water by decoction or spirits.
    Properties and Uses. -- It is diuretic, stimulant, astringent, and tonic. It is used in all chronic urinary disorders, as well as in hematuria, gout, and rheumatism, with moderate good effect.
    Dose. -- Of the decoction, from two to four fluid ounces, three or four times a day.