Flora of North America species comparison

often simple from base, (1–)4–13 dm.

erect, unbranched or branched.

basal and cauline; petiolate or subsessile;

basal not rosulate, petiolate, blade margins lyrately lobed or pinnatifid to pinnatisect;

cauline shortly petiolate or subsessile, blade (base not auriculate), margins dentate or lobed, (smaller and fewer-lobed than basal).

petiole 1–30 cm;

blade oblong, obovate, oblanceolate, or spatulate in outline, lyrate or pinnatisect, sometimes undivided, 2–60 cm × 10–200 mm, margins dentate, apex obtuse or acute;

lobes 1–12 each side, oblong or ovate, to 10 cm × 50 mm.

(distal) subsessile;

blade often undivided.

(corymbose, several-flowered), usually greatly elongated in fruit.

sepals 5.5–10 × 1–2 mm, glabrous or sparsely pubescent;

petals usually purple or pink, sometimes white (veins often darker), 15–25 × 3–8 mm, claw to 14 mm;

filaments 5–12 mm;

anthers 1.5–2 mm.

sepals erect, narrowly oblong [linear], lateral pair slightly saccate basally;

petals white, creamy white, yellow, pink, or purple [lilac] (usually with darker veins), broadly obovate [suborbicular], claw differentiated from blade, (± longer than sepals, apex obtuse or emarginate [rounded]);

stamens strongly tetradynamous;

filaments not dilated basally;

anthers oblong or oblong-linear, (apex obtuse);

nectar glands (4), median pair present.

spreading to ascending, 5–40 mm.

divaricate, ascending, or spreading [reflexed].

usually fusiform or lanceolate, sometimes ovoid or cylindrical;

valvular segment 1–3.5 mm;

terminal segment (1–)3–15(–25) cm × (5–)7–13(–15) mm, smooth or, rarely, slightly constricted between seeds, not ribbed, beak narrowly to broadly conical to linear;

style 10–40 mm.

siliques or silicles, indehiscent, sessile, segments 2, (lomentaceous, often breaking into 1-seeded units), cylindrical, fusiform, lanceolate, or ovoid, [linear, oblong, ellipsoid], smooth or torulose to strongly moniliform, (constricted or not between seeds), terete or polygonal; (valvular segment seedless, rudimentary, or aborted, nearly as wide as pedicel; terminal segment several-seeded, corky);

valves glabrous, antrorsely scabrous, or hispid;

replum and septum not differentiated;

ovules 2–22 per ovary; (style slender);

stigma capitate, slightly 2-lobed.

globose or ovoid, 2.5–4 mm diam. 2n = 18.

uniseriate, plump, not winged, oblong, ovoid, or globose [subglobose];

seed coat (nearly smooth to reticulate), not mucilaginous when wetted;

cotyledons conduplicate.

= 9.