Names: Coneflower, purple coneflower herb, purpurfarbener Igelkopf, purpurfarbene Kegelblume, purpurfarbener Sonnenhut, red sunflower, roter Sonnenhut.
Botany: A hardy, herbaceous perennial. Stems erect, stout, branched, hirsute or glabrous, 60–180 cm high; basal leaves ovate to ovate-lanceolate, acute, coarsely or sharply serrate, petioles up to 25 cm long, blades to 20 cm long and 15cm wide, blade abruptly narrowing to base, often cordate, decurrent on petiole, 3–5 veined.
Echinacea purpurea is native to the Atlantic drainage area of the United States of America and Canada, but not Mexico. It has been introduced as a cultivated medicinal plant in parts of north and eastern Africa and in Europe.
Products: Echinacea purpurea products are taken internally for a number of different ailments, including the common cold, but this review deals only with external use.
The volatile oil contains, among other compounds, borneol, bornyl acetate, pentadeca-8-(Z)-en-2-one, germacrene D, caryophyllene, and caryophyllene epoxide.
Antibacterial, anti-inflammatory, antiseptic, antispasmodic, bacteriostatic, demulcent, immunostimulant, interferon-like activity, peripheral vasodilator, skin alterative etc. External uses include promotion of wound healing and treatment of inflammatory skin conditions.
Allergy to the plant. Occasionally allergic reactions (hypersensitivity) may occur owing to allergy to plants in the Asteraceae (Compositae) family.