Sorbaria are large, deciduous suckering shrubs , 3 to 6 ft high with attractive pinnate leaves 8 to 12 in. long, composed of thirteen to twenty-five leaflets, which are lanceolate, 2 to 31⁄2 in. long, 1⁄2 to 1 in. wide, sharply and conspicuously double-toothed, green on both sides; usually quite glabrous above and the same beneath .
Small, white flowers 1⁄3 in. across, white, produced during July and August in a stiff erect raceme 6 to 10 in. high; flower-stalks downy and glandular; ovaries glabrous or nearly so.