Laxer than ssp. sativa, often ±prostrate; fls yellow; pods falcate (or nearly straight) or coiled to 1.5 turns. Native of Siberia and n. Europe, now widely cult. and escaped, but not so common as ssp. sativa.

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

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