Flora of North America species comparison

simple or few to several from base, erect or decumbent, (rarely branched, usually leafy), to 4 dm.

several from base, erect to decumbent or prostrate, (unbranched or branched, sometimes densely leaved), 1–3.5(–4.5) dm.

blade lyrate-pinnatifid, 1–7 cm, margins entire or shallowly dentate.

blade obovate to broadly oblong, 1.5–5(–8) cm, margins lyrate-pinnatifid, dentate, or entire.

(sessile or shortly petiolate);

blade narrowly obovate to elliptic, 0.5–6 cm, margins entire, repand, or shallowly dentate.

(proximal sometimes petiolate, distal sessile);

blade linear to oblanceolate, often falcate, 1–4(–7) cm, (proximal with base sometimes cuneate), margins entire, repand, or shallowly dentate.

dense, (elongated in fruit, often subtended by distal cauline leaves).

dense.

sepals elliptic, 3.7–7.2 mm, (lateral pair somewhat cucullate, median pair thickened apically);

petals (yellow to orange-yellow), obovate to obdeltate, (4.5–)7–10(–11) mm, (tapering to short claw, apex often emarginate).

sepals elliptic or oblong, 3–6.5 mm, (lateral pair subsaccate, median pair thickened apically, cucullate);

petals (widely spreading at anthesis, yellow to orange, claw sometimes whitish), cuneate, obdeltate, or obovate, (tapering to claw), 5–8(–10) mm, (claw often widened at base).

(usually divaricate-spreading, straight or slightly curved, delicate, sometimes drooping, especially on herbarium specimens), 7–10 mm, (somewhat rigid).

(divaricate-ascending, sigmoid or, sometimes, nearly straight), 5–15(–25) mm.

(sessile or substipitate), globose or broadly obovate, not inflated, 4–6 mm, (smooth);

valves (not retaining seeds after dehiscence), glabrous;

replum as wide as or wider than fruit;

ovules 8–16 per ovary;

style 2–5 mm.

(shortly stipitate), subglobose, not or slightly compressed, (3–)4–8 mm;

valves (not retaining seeds after dehiscence), glabrous throughout;

replum as wide as or wider than fruit;

ovules (8–)12–20(–26) per ovary;

style (1.5–)2–4(–5) mm.

flattened.

flattened.

= 14.

= 12, 32.