A perennial which grows on a rhizomatous rootstock. The palmate leaves develop with, or just after, the yellow-brown flowers. Fruits split open to reveal spherical seeds, which turn from green to deep blue as they ripen.
History and traditions
A herb used in the traditional medicine of the Native Americans to facilitate childbirth. Its value being appreciated by the wider population, it was listed at the end of the 19th century as an official medicinal herb in the United States pharmacopoeia. The name “cohosh” is from a local tribal language.
Growth
Requires moist, rich soil, in partial or deep shade. Divide plants in spring. Propagation from seed is slow and germination may often be erratic.
Parts used
Rhizomes and roots are dried for inclusion in powders, liquid extracts and other medicinal preparations.
Uses
Medicinal
A herb which stimulates the uterus and is taken internally, as a decoction or infusion to facilitate contractions during labor and for other conditions connected with childbirth. It also has anti-inflammatory and diuretic properties and is used to treat inflammation of the pelvis and endometriosis.
