Clustered perennial 1–4 dm, with short stolons and rhizomes; lvs ± persistently hairy along the margins, all with a blunt callous tip, the basal ones elongate, to 3 dm × 1 cm, the cauline 2–4, shorter and somewhat narrower; infl (1–)3–6 cm, the loosely spreading, almost filiform primary branches with a single terminal fl, or few-branched and with 2–4 fls; tep lance-ovate, usually chestnut-brown in the center with scarious margins, (2.6–)3–4.5 mm, subequal or the pet a bit longer than the sep; anthers ca twice as long as the filaments; fr ovoid, 3.2–4.5 mm, mucronate; seeds purple-brown, the body subglobose, 1–1.5 mm, with a pale terminal appendage nearly as long; 2n=18. Moist woods, less often along roadsides or in other open places; Nf. to Sask., s. to Ga., Ala., and Io. Spring. Two vars.: