S. officinalis: stem glabrous, erect, about two feet high; leaves chiefly radical, pinnate, with 9-13 ovate or oblong toothed leaflets; upper part of the stem almost leafless, divided into a few long peduncles, each terminated by a single flower-head; flowers crowded, dark purple, the heads at first globular, becoming ovoid or oblong. - Moist meadows. Fl. June, July.