Sibara virginica (L.) Rollins
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Resembling Cardamine parviflora in aspect; stiff, ascending or decumbent, 1–4 dm, often branched from the usually hirsute base, the hairs simple or bifurcate; basal lvs oblong, 4–8 cm, deeply pinnatifid or lyrate-pinnatifid into oblong divergent segments; cauline lvs similarly pinnatifid, or the uppermost lance-linear and entire; racemes compact; pet 2–3 mm, white or pinkish; frs ascending (often more strongly so than the short pedicels), 1.5–2.5 cm × 1.5–2 mm, scarcely beaked; seeds suborbicular, narrowly winged, 1.2–1.5 mm wide; 2n=16. Woods, fields, and roadsides; Va. to Ind. and Kans., s. to Fla. and Tex. Mar.–May. (Arabis v.)