Flora of North America species comparison

erect or ascending, branched.

ascending to suberect, (0.5–)2–5(–6) dm, moderately pubescent (trichomes predominantly patent basally, retrorse distally to near racemes).

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.

(rosulate);

blade elliptic to obovate, 2–9 cm × 10–35 mm, margins sinuate to pinnatifid, lyrate, [2–4(–6) lobes each side], (margins and veins glabrescent to sparsely pubescent).

shortly petiolate to sessile;

blade margins entire or dentate.

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

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.

sepals 3–5.5 mm, pubescent or glabrous, trichomes straight;

petals yellow, 5–8(–10) × 3–5 mm;

filaments 3.5–6 mm;

anthers 1.5–2 mm;

gynophore obsolete or to 0.5 mm.

ascending, divaricate, or reflexed, stout to slender.

(3–)8–20(–37) mm.

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.

erect-patent, (1.5–)2–4 cm × 1.5–2.5 mm;

terminal segment beaklike, (1–)1.5–3 mm, seedless; (ovules 20–36 per ovary).

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

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

cotyledons conduplicate.

0.9–1.3 × 0.6–0.9 mm.

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

= 42.