Contractions. - Eup-perf. Ept.
Nat. ord., Compositae.
Synonyms. - E. connatum, E. Virginicum.
Fig. - Bigelow, Amer. Med. Bot., pl. 11, vol. i.
Bone-set, Ague-weed, Thorough-wort, Cross-wort.
Habitat. - North America.
Flowering time. - June to October.
Parts employed. - The entire plant.
Characters. - Root-stock perennial, horizontal, crooked with scanty fibres, and sending up many stems. Stem erect, round, hairy, branched at top only. Leaves opposite, perfoliate, connate, oblong, tapering, acute; upper leaves divided into pairs. Flowers in corymbs with hairy peduncles. Seeds oblong, on a naked receptacle.
Time for collecting. - While in flower.
Preparation. - Tincture, corresponding in alcoholic strength with proof spirit.
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 lx, Tincture only. 1 and upwards, Tincture, Pilules, or Globules.