Flora of North America species comparison

several from base, decumbent to ascending, (unbranched), 0.5–1.5 dm.

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

(petiole slender);

blade obovate, 3–5 cm (width 10–20 mm, base tapering abruptly to petiole), margins entire, (apex rarely slightly acute).

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

blade oblanceolate, 0.5–1.5 cm (width 3–5 mm), margins entire.

(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.

subcorymbose.

dense.

sepals oblong, 8–10 mm;

petals spatulate, 12–14 mm.

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).

(divaricate, straight), 5–10 mm.

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

didymous, mostly highly inflated (strongly flattened at least in 1/2 toward replum), 14–18 × 14–18 mm, (papery, basal sinus slightly notched, apical open, shallow);

valves (retaining seeds after dehiscence), evenly pubescent;

replum lanceolate, 7–10 mm, width 1.5–2.5 mm, as wide as or wider than fruit, apex acute to acuminate;

ovules 8–10 per ovary;

style 5–7 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.

flattened, (2–3 mm).

flattened.

= 48–52, 52, 64, 67–70.

= 12, 32.