DEFINITION

Powdered Echinacea pallida consists of the dried rhizome and roots of Echinacea pallida (Nutt.) Nutt. (Fam. Asteraceae) harvested in the fall after three or more years of growth, reduced to powder. It contains NLT 0.5% of total phenols, calculated on the dried basis as the sum of caftaric acid (C₁₃H₁₂O₉), chicoric acid (C₂₂H₁₈O₁₂), chlorogenic acid (C₁₆H₁₈O₉), and echinacoside (C₃₅H₄₆O₂₀).