Lesquerella ludoviciana (Nutt.) S.Watson
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Taprooted perennial with several erect or ascending stems 1–4 dm; basal lvs narrow, to 10 × 1 cm, entire or shallowly toothed, the cauline progressively smaller and not very numerous; racemes elongating to as much as 1.5 dm; pet 6–10 mm; ovules (2–)4–6(–8) per locule; pedicels elongating to 1–2 cm and soon becoming recurved; frs subglobose or obovoid, (3–)3.5–5.5(–6) mm, copiously and loosely stellate; style 3–5 mm; 2n=10, 30. Prairies, plains, and barrens; w. Ill. and e. Minn.; N.D. to Kans., w. to Mont., n. Ariz., and s. Nev. Apr.–Aug. (L. argentea, a preoccupied name)