Flora of North America species comparison

simple from base, erect, (unbranched, sparsely leaved), to 7 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 elliptic or obovate to oblong, 4–15 cm, margins entire, dentate, or lyrate-pinnatifid.

(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 often narrowed to short petiole, distal sessile);

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

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

dense or slightly elongated.

dense.

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

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

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

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

(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.

= 18, 36.