Flora of North America species comparison

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

several from base, decumbent, (arising laterally, unbranched), 1–3 dm.

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

(numerous); (petiole slender, rarely with a few broad teeth);

blade obovate, 3–7 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.

blade oblanceolate, 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 oblong, 5–7 mm;

petals (yellow to purplish), spatulate, 8–12 mm.

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

(ascending or spreading, slightly curved or sigmoid), 1–2 cm.

(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.

obcordate, angustiseptate, somewhat inflated, (not bladdery), 5–7 × 6–9 mm, (papery, basal sinus absent, apical sinus broad and open);

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

replum ovate, 5–7 mm, as wide as or wider than fruit, apex acute or obtuse;

ovules 4–6 per ovary;

style 5–7 mm.

flattened.

= 18, 36.