Orbexilum pedunculatum (Mill.) Rydb.

  • Authority

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

  • Family

    Fabaceae

  • Scientific Name

    Orbexilum pedunculatum (Mill.) Rydb.

  • Description

    Species Description - Perennial from a fusiform taproot, often branched from the base, erect, 3–8 dm; lfls narrowly oblong or elliptic to lance-linear, 5–7 cm, gradually narrowed to an obtuse tip, glabrous to thinly pubescent; peduncles ascending, much exceeding the subtending lvs; racemes 2–6 cm; fls blue, 6–7 mm, subtended by deciduous bracts; cal ± hirsute, the tube 1.5–2 mm, the lobes triangular, pointed, the upper about equaling the tube, the lower longer; fr suborbicular, 4–5 mm; 2n=22. Dry or moist open woods and prairies. May, June. (Psoralea p.)

  • Common Names

    Sampson's snakeroot