Raphanus raphanistrum L.

  • Authority

    Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

  • Family

    Brassicaceae

  • Scientific Name

    Raphanus raphanistrum L.

  • Description

    Species Description - Coarse annual from a stout taproot, 3–8 dm, usually sparsely hispid; lower lvs obovate-oblong, 1–2 dm, pinnatifid into 5–15 oblong segments, the lower segments very small, the upper progressively larger; upper lvs reduced and often entire; pet yellow, turning white, 10–15 mm; mature pedicels ascending, 8–15 mm; fr nearly cylindric when fresh, when dry becoming prominently several-ribbed and constricted between the 4–10 seeds, the body 2–4 cm, the beak 1–3 cm, the lower member 1–2 mm, its upper margin indicated by a line or projecting rim extending half way to all around the fr; 2n=18. Native of Eurasia, established as a weed in fields and waste places and along roadsides throughout most of the U.S. and s. Can. June–Aug.

  • Common Names

    jointed charlock