Polanisia jamesii (Torr. & A.Gray) Iltis
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Stems 1–3(–4) dm; petioles usually shorter than the blades; lfls linear or linear-elliptic, 0.5–4 cm × 0.5–4 mm; fls few (5–9 open fls and buds); bracts trifoliolate; pet white to ochroleucous, strongly dimorphic, the larger pair 4–5 mm, emarginate and shallowly laciniate with 3–6 segments, the smaller 2–3 mm and more deeply laciniate; stamens 6–9; nectary 2–3.5 × 0.5 mm, tubular, yellow, persistent and drying pink-purple; style 0.5–2 mm, persistent in fr; frs linear-fusiform, slightly inflated, 1.5–3 cm × 3–4 mm, dehiscing nearly to the base; seeds 4–18, 1.7–1.8 mm; 2n=20. Sandy prairies and plains; Great Plains (n. as far as S.D.) e. to Wis. and Ill. (Cristatella j.)