Cimicifuga – Bugbane – Cohosh –
There are about 18 species of erect, clump forming perennials, in this genus. They occur in cooler areas of Northern region, usually found in moist, shady grassland, woodland, or scrub. They have compound, alternate, ternate, to 3 ternate toothed leaflets. The small, numerous, white or cream flowers, occasionally pink tinged, and usually to 3/4″ long, have 2-5 small petals and prominent tufts of stamens. They are crowded together in slender, bottle brush like racemes or panicles, which are followed by greenish white, then brown, star shaped follicles. Some are unpleasantly scented. They are suitable for a moist border or woodland.
Grow in moist, fertile, preferably humus rich soil in partial shade. Provide support. Divide in spring.
Prone to rust, and tarnish plant bug.
C. dahurica – This clump forming perennial from Eastern Siberia, Mongolia and China to Japan grows 5′ feet tall and 2-3′ feet wide. It produces 2 or 3 ternate, ovate, toothed, basal leaves, to 24″ long, with pinnatifid or lobed bases and heart shaped terminal leaflets. From summer to autumn it bears cream-white flowers, to ½” long, in simple or compound racemes, to 20″ long.