Flora of North America species comparison

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

simple or few to several from base, erect to spreading or prostrate, 0.5–2(–3) dm.

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

(usually ± rosulate);

blade obovate to oblanceolate, (1–)2–6(–15) 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 or lingulate, 0.5–1.5(–3) cm, margins entire.

dense or slightly elongated.

loose.

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 ovate to elliptic, (3–)4–5(–6) mm, (median pair often thickened apically, cucullate);

petals spatulate, 5–6(–7) mm, (blade gradually narrowed to claw).

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

(erect to divaricate or ascending), (5–)10–20(–40) mm, (stout).

(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.

subglobose to ellipsoid, uncompressed, 4–6(–9) mm;

valves (not retaining seeds after dehiscence), glabrous or sparsely pubescent outside, trichomes sessile;

replum as wide as or wider than fruit;

ovules (8–)10–14(–16) per ovary;

style 1–2.5(–4) mm.

flattened.

plump.

= 18, 36.

= 60.