Contractions. - Eup-pur. Ep-p.

Nat. ord., Compositae.

Fig. - Lamarck, Encyclop., pl. 672.

Gravel-root, Queen of the Meadow.

Habitat. - America, in swamps and low grounds.

Flowering time. - August and September.

Part employed. - The fresh root.

Characters. - A perennial, herbaceous plant. Stem stout, solid, green, or sometimes purplish, with a purple band at the joints about 1 inch wide; from 3 to 6 feet high. Leaves feather-veined in whorls of 3s, 4s, and 5s (rarely 2s); ovate, oblong-ovate, or lanceolate; smooth above, downy on the veins beneath, coarsely serrate, thin, 8 to 10 inches long by 4 to 5 inches wide. Flowers in a dense and compound corymb, pale purple, ranging to whitish. Heads cylindrical, 5 to 10 flowered. Scales purplish, numerous, closely imbricated in several rows of unequal length, slightly striate. Root long, knotty, fibrous, white or brownish, bitter.

Time for collecting. - Before flowering, or when the herb is dying down, in autumn.

Preparations. - Tincture, corresponding in alcoholic strength with proof spirit. Triturations of Eupurpurin.

N.B. - As the plant is not indigenous to this country, the tincture must be imported from North America.

Reference to Horn. Proving. - Hale's New Remedies.

Proper forms for dispensing. - φ and 1x, Tincture only. 1 and upwards, Tincture, Pilules, or Globules.