H36 in. x W36 in. This rarely cultivated goatsbeard from Siberia and Japan is smaller in stature than the more common A. dioicus. Its broad green leaflets are set on low, outspreading stems in a deciduous clump. Stout spires of cream-white flowers appear from late spring to summer. A distinctive, very hardy perennial for a shaded site in rich, moist loam. Hardy to Zone 2.