Flora of North America species comparison

simple from base, erect, (unbranched, sparsely leaved), to 7 dm.

few to several from base, erect or outer ones decumbent, 0.5–4 dm.

blade elliptic or obovate to oblong, 4–15 cm, margins entire, dentate, or lyrate-pinnatifid.

(long-petiolate);

blade elliptic to obovate or rhombic, 2–6(–9) cm, margins entire.

(proximal often narrowed to short petiole, distal sessile);

blade broadly elliptic to obovate or rhombic, 0.5–3(–5) cm, margins entire.

(sessile or shortly petiolate);

blade oblanceolate to spatulate, 1–3 cm, (proximal broader), margins entire.

dense or slightly elongated.

dense, (relatively short).

sepals elliptic to ovate, 3.5–6(–7) mm, (median pair usually thickened apically, cucullate);

petals (white, often purple-veined, fading purplish), suborbicular to obovate, obdeltate, or cuneate, 4.5–10(–12) mm, (often narrowed to broad claw, apex emarginate, less frequently claw undifferentiated from blade).

sepals elliptic or narrowly oblong, 4–5.4 mm, (tapered to apex);

petals (white, base and claw yellow, conspicuously purple-veined), usually broadly obovate or rhombic, 6–10 mm, (± equal to blade, tapering to slender claw).

(spreading or recurved, loosely sigmoid), 5–25 mm.

(erect to spreading, ascending, or (proximal) horizontal, straight to slightly curved, sometimes loosely sigmoid), 6–12(–20) mm.

(pendent or horizontal, sessile or substipitate), subglobose to broadly ellipsoid, not or slightly inflated, (4–)5–8 mm;

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

replum as wide as or wider than fruit;

ovules 4–8(–12) per ovary;

style 1–3(–4) mm.

(sessile or substipitate, often reddish magenta), usually ovoid to subglobose, inflated, 4–6(–7) mm;

valves (not retaining seeds after dehiscence), glabrous;

replum as wide as or wider than fruit;

septum perforate;

ovules 8–12 per ovary;

style 1.5–4 mm.

flattened.

somewhat flattened.

= 18, 36.

= 12.