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, (often distal 1/2 branched), to 6 dm.

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

blade oblanceolate, to 9 cm, margins entire, dentate, or sinuate to lyrate-pinnatifid.

(proximal shortly petiolate, distal sessile);

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

(proximal shortly petiolate, distal sessile);

blade narrowly elliptic to linear, 2–4(–6) cm, margins entire or repand to shallowly dentate.

loose.

loose.

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 or elongate-ovate, 3.4–5.2(–6.5) mm, (lateral pair subsaccate, median pair thickened apically, cucullate);

petals obovate or deltate, 5–10 mm, (sometimes with short claw, margins undulate).

(recurved, sigmoid), 5–15 mm.

(divaricate-ascending to widely spreading, straight), 8–20 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.

globose or subglobose, sometimes slightly compressed, 3–6 mm;

valves (not retaining seeds after dehiscence), densely papillose, densely pubescent inside, trichomes raised;

replum as wide as or wider than fruit;

ovules 8–18 per ovary;

style 1.5–3.5 mm.

flattened.

flattened.

= 10, 20.

= 12.