Flora of North America species comparison

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

simple from base, erect or outer ones slightly decumbent toward base, (from below or in basal leaves, unbranched), (0.5–)0.8–1.6(–2) dm.

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

(erect, petiole long, slender);

blade spatulate to broadly oblanceolate, (3–)5–7(–12) cm, (base gradually tapering to petiole), margins entire, (apex rounded or obtuse).

(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.

blade oblanceolate, similar to basal, (base cuneate), margins entire.

dense.

dense.

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).

sepals (erect), linear to linear-oblong, somewhat boat-shaped, 7–10 mm;

petals (erect at anthesis), lingulate, 11–15 mm, (claw undifferentiated from blade).

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

(divaricate-ascending, straight or slightly curved), 10–15 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.

(purplish in age), strongly didymous, semiorbicular, highly inflated, 10–18 × 14–19 mm, (papery), basal sinus usually shallow, rarely absent, apical sinus deep, narrowly V-shaped;

valves retaining seeds after dehiscence, sides flat, back rounded, margins keeled, base and apex obtuse;

replum narrowly oblong to linear, as wide as or wider than fruit, base slightly narrowed, apex obtusely rounded;

ovules 4 per ovary;

style 3–5 mm, (slender).

flattened.

slightly flattened.

= 12, 32.