Lepidium sativum L.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - . Glabrous, ± glaucous annual 2–4 dm; lvs pinnately dissected into a few linear, oblong, or oblanceolate segments; fls 2 mm wide; stamens 6; fr elliptic-oval, 5–7 mm, two-thirds as wide, deeply notched; style half as long to nearly as long as the notch; mature pedicels erect or closely ascending, 2–4 mm; 2n=16, 24. Native probably of w. Asia, escaped from cult. especially in the ne. part of our range.