Flora of North America species comparison

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

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

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

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

(proximal shortly petiolate, distal sessile);

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

(sessile or shortly petiolate);

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

loose.

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

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).

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).

(recurved, sigmoid), 5–15 mm.

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

(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.

(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.

flattened.

flattened.

= 10, 20.

= 14.