Eruca sativa Mill.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Annual, 2–8 dm; lvs irregularly lyrate, the terminal segment the largest; lower lvs petiolate, the upper sessile; sep caducous, the inner not cucullate; pet white to sordid or ochroleucous, with a few conspicuous purple veins, 1.5–2 cm, the claw surpassing the cal; anthers obtuse; frs erect on short, stout pedicels, the body 12–25 × 3–6 mm, glabrous, the narrowly triangular beak 5–12 mm; 2n=22. Native of Europe, where cult. for salad; intr. or escaped here and there in our range. May, June. Sometimes subordinated to or submerged in E. vesicaria (L.) Cav., a Mediterranean plant with the sep subpersistent and all cucullate, and with acutish anthers.