Flora of North America species comparison

simple from base, erect, (unbranched, sparsely leaved), to 7 dm.

several from base, decumbent to erect, (several-branched, frequently stout), 1.5–6 dm.

blade elliptic or obovate to oblong, 4–15 cm, margins entire, dentate, or lyrate-pinnatifid.

blade elliptic, (1.5–)3–6.5 cm, margins entire, repand, or shallowly dentate.

(proximal often narrowed to short petiole, distal sessile);

blade broadly elliptic to obovate or rhombic, 0.5–3(–5) cm, margins entire.

(proximal shortly petiolate, distal sessile);

blade linear to elliptic or obovate, (0.5–)1–3.5(–4.5) cm, margins entire or repand.

dense or slightly elongated.

loose.

sepals elliptic to ovate, 3.5–6(–7) mm, (median pair usually thickened apically, cucullate);

petals (white, often purple-veined, fading purplish), suborbicular to obovate, obdeltate, or cuneate, 4.5–10(–12) mm, (often narrowed to broad claw, apex emarginate, less frequently claw undifferentiated from blade).

sepals oblong, lanceolate, or elliptic, (3–)3.5–6(–7.5) mm, (lateral pair subsaccate, median pair thickened apically, cucullate);

petals (yellow to orange), suborbicular or obovate, (5–)6.5–8(–11) mm, (narrowing gradually to broad claw, usually widened at base).

(spreading or recurved, loosely sigmoid), 5–25 mm.

(recurved, sigmoid), 5–15 mm.

(pendent or horizontal, sessile or substipitate), subglobose to broadly ellipsoid, not or slightly inflated, (4–)5–8 mm;

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

replum as wide as or wider than fruit;

ovules 4–8(–12) per ovary;

style 1–3(–4) mm.

(sessile or shortly stipitate), orbicular or obovoid, often slightly compressed, (3.5–)4–6 mm;

valves sparsely pubescent, trichomes sessile and stellate, densely pubescent inside, trichomes simple or branched;

ovules 4–12 per ovary;

style 2–4.5 mm.

flattened.

flattened.

= 18, 36.

= 10, 20.