Flora of North America species comparison

erect, 2–7(–10) dm, glabrescent or sparsely pubescent basally.

erect or ascending, branched.

basal and, sometimes, cauline; petiolate or sessile;

basal rosulate or not, petiolate, blade margins dentate, sinuate, or pinnatisect;

cauline petiolate or sessile, blade (base not auriculate), margins entire or dentate.

blade elliptic to obovate, 2–15 cm × 10–60(–80) mm, margins sinuate to deeply pinnatifid, (2–5 lobes each side).

petiolate;

similar to basal, (distal cauline shortly petiolate, blade similar, with narrower segments), surfaces usually glabrescent.

(corymbose, sometimes shortly bracteate basally), considerably elongated in fruit.

sepals 4–6 mm, glabrous or pubescent, trichomes straight;

petals yellow, 7–11(–13) × 5–8 mm, (apex rounded);

filaments 4–8 mm;

anthers 2.5–3 mm;

gynophore 0.5–3 mm.

sepals ascending to spreading, oblong, lateral pair not saccate basally;

petals yellow or white [purple], obovate, (apex rounded or truncate);

stamens tetradynamous;

filaments not dilated basally;

anthers oblong to ovate, (apex obtuse);

nectar glands (4): lateral cushionlike, median cylindrical.

8–35 mm.

ascending, divaricate, or reflexed, stout to slender.

usually erect, rarely ascending, (somewhat torulose, slightly compressed), 2–5 cm × 1.5–2.5 mm;

terminal segment (stout), beaklike, 1.5–3 mm, seedless; (ovules 20–32(–46) per ovary).

siliques, dehiscent, sessile or (long-)stipitate, segments 1 or 2, linear to linear-oblong, torulose, latiseptate or terete; (proximal segment numerous-seeded, 1-veined; terminal segment 0–2-seeded);

valves glabrous;

replum rounded;

septum complete;

ovules [12–]20–36(–46)[–276] per ovary; (style obsolete or distinct);

stigma capitate or somewhat decurrent, 2-lobed.

1–1.3 × 0.6–0.9 mm.

usually biseriate, rarely uniseriate, not winged, ovoid or ellipsoid;

seed coat (smooth or minutely reticulate), slightly mucilaginous or not when wetted;

cotyledons conduplicate.

= 7, [8, 9, 10,] 11, [13,] 21.

= 22.