Rhizomes 2.5-25 cm. Stems 8-15 cm tall, glabrous. Basal leaves 1-3; petiole 4-9 cm; leaflets broadly ovate or orbicular, 1-2 cm, 3-cleft; petiolules 0.6-1.2 cm. Cauline leaves 2, opposite, 3-cleft or ternate, segments 3-lobed; petiole ca. 1 cm. Peduncle erect in flowers and fruit, inflorescence held above leaves. Inflorescences compact headlike cymes of 5-9 flowers. Flowers sessile or pedicels 0.5-1.5 mm, yellowish green, 4-7 mm in diam. Calyx lobes rectangular, broadly elliptic to ovate, 1.5-3 × ca. 1 mm, apex obtuse. Corolla lobes broadly ovate to orbicular or rectangular, 1.75-3.25 × 2-2.5 mm, apex rounded to obtuse. Ovary semi-inferior to inferior, 4- or 5-loculed. Fruit not seen. Fl. Apr-Jul, fr. Jul-Aug. 2n = 36.
"Delicate herb with a musky odor, 5–20 cm; basal lvs long-petiolate, ternate, the primary divisions discrete, again 1–2-ternate or parted, the ultimate segments rather broad, thin, round-toothed and mucronate; cauline lvs similar but smaller and less dissected, commonly borne a little above the middle of the shoot; cor yellowish-green, 5–8 mm wide; 2n=36, 54. Moist, often mossy places in forested regions; circumboreal, extending s. to s. Minn., Wis., n. Ill., n. Io., and Delaware Co., N.Y. May–July."