Flora of North America species comparison

several from base, erect or somewhat decumbent, (unbranched), 1–3.5 dm.

several from base, erect or decumbent and straggling, (branched distally, branches usually filiform), to 5 dm.

(petiole slender, usually incised or with broad teeth along petiole);

blade obovate, 4–6 cm, margins entire.

blade obovate or rhombic to broadly elliptic, 1–4.5(–6.5) cm, margins entire or lyrate-pinnatifid.

blade oblanceolate or broader, 1.5–2.5 cm, margins entire or sparsely dentate, (apex acute).

(proximal petiolate, distal sessile);

blade rhombic or obovate to elliptic, 0.5–2(–3) cm, margins entire or sinuate to remotely toothed.

somewhat loose, (5–15 cm).

loose.

sepals oblong, 5–7 mm;

petals (lemon yellow), spatulate, 9–12 mm.

sepals elliptic or ovate, 2.5–5.5 mm, (median pair thickened apically, cucullate);

petals (yellow to orange-yellow), obovate to cuneate, 4–7 mm, (apex sometimes retuse).

(spreading or ascending, curved, fruits not pendent), 10–20 mm.

(recurved in age), 5–10(–15) mm, (slender).

didymous, obreniform, moderately inflated, angustispetate, (8–)10–12(–15) × 10–14(–16) mm, (papery, not keeled, basal sinus absent, apical sinus broad and open);

valves (retaining seeds after dehiscence, rounded or irregular), loosely pubescent, trichomes spreading;

replum broadly lanceolate, as wide as or wider than fruit, apex acute;

ovules 8 per ovary;

style 1–2 mm.

globose or subglobose, not or slightly inflated, (2–)3–5(–7) mm;

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

replum as wide as or wider than fruit;

ovules (4–)8–16(–20) per ovary;

style (1–5–)2–4.5 mm.

flattened.

flattened.

= 8.

= 10.