Amsinckia retrorsa Suksd.

  • Authority

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

  • Family


  • Scientific Name

    Amsinckia retrorsa Suksd.

  • Description

    Species Description - Rough-hairy annual 1–6 dm; stem spreading-hispid and also evidently puberulent or strigose throughout with shorter and softer, ± retrorse hairs; lvs linear or linear-oblong, to 12 cm, seldom over 1 cm wide, the basal ones often crowded and wider than the others; sep 5, 5–12 mm at maturity; cor 5–8 mm, the tube 10-nerved below the insertion of the stamens, not much exserted from the cal; stamens inserted near the middle of the cor-tube; nutlets 2–3 mm; 2n=16, 26. Widespread in w. U.S., occasional with us as a weed in disturbed sites. Apr.–July.