Flora of North America species comparison

several from base, erect or laterally decumbent, (usually unbranched), (0.3–)0.5–2.5(–4) dm.

several from base, erect or outer decumbent, (often several-branched, branches slender and flexuous), to 8 dm.

blade linear to somewhat elliptic, 1–4(–8) cm, margins entire or coarsely dentate.

blade pinnatisect to repand, 3–9(–14) cm, margins entire.

(shortly petiolate);

blade usually linear to narrowly oblanceolate, rarely elliptic to rhombic, 0.5–2.5 cm, (base narrowing to petiole), margins entire or remotely dentate (sometimes involute).

(sometimes secund, proximal usually petiolate, distal sessile);

blade elliptic, 1–6 cm, (distal with cuneate base), margins entire or deeply dentate.

loose to somewhat dense.

dense.

sepals elliptic to oblong, 5–8 mm, (lateral pair not saccate, median pair often thickened apically, ± cucullate);

petals (usually orange or orange-yellow at junction of blade and claw, sometimes also with orange guidelines), obdeltate to obovate, 8–12 mm, (claw relatively short).

sepals elliptic to oblong, 3–5.5 mm, (median pair slightly thickened apically, cucullate);

petals (sometimes drying slightly purplish), suborbicular or broadly ovate, 4.5–7(–9) mm, (narrowing gradually to short claw).

(divaricate-spreading to erect, usually straight or slightly curved, occasionally sigmoid), 8–20(–40) mm.

(horizontal or recurved and ascending at tip, sometimes loosely sigmoid), (5–)10–20 mm.

globose, broadly ellipsoid, or ovoid, not or slightly inflated, 5–8 mm, (firm, apex usually acute);

valves (not retaining seeds after dehiscence, often reddish in age), glabrous throughout;

replum as wide as or wider than fruit;

ovules (12–)20–32(–40) per ovary;

style (2–)3–6 mm.

globose or broadly ellipsoid, not or slightly inflated, (4–)5–8 mm, (smooth);

valves (not retaining seeds after dehiscence), glabrous;

replum as wide as or wider than fruit;

ovules (8–)12–16(–20) per ovary;

style (1.5–)2–3(–4) mm.

flattened.

flattened.

= 12, 14, 24.

= 12.