Shrub to 1(1.5) m; lvs alternate, lance-oblong to elliptic or lance-ovate, obtuse to acuminate, crenate-serrate; petioles 5–15 mm; umbels sessile, 1–3-fld; fls appearing with the lvs, 5-merous; hypanthium saucer-shaped; sep 1.5–2 mm; pet none; styles 1 mm, connate a third their length; stamens very short in the pistillate fls; fr black, 6–8 mm; stones 3. Swamps and bogs; Nf. and Que. to B.C., s. to N.J., Pa., O., n. Ind., n. Ill., Io., and Calif.; also in Tenn.