Flora of North America species comparison

simple or few to several from base, erect or decumbent, usually branched distally, 0.5–5 dm, pubescent basally, trichomes mixed simple, 1-forked, and (fewer) stellate ones, rarely 3-rayed, glabrous or pubescent apically.

erect, ascending, or decumbent, unbranched or branched distally, (usually glabrous distally).

basal and cauline; petiolate, sessile, or subsessile;

basal rosulate, petiolate, blade margins entire, toothed, or pinnately lobed;

cauline blade margins usually entire or dentate, rarely lyrate.

petiole 0.5–6 cm;

blade oblanceolate or ovate, 0.5–8.5 cm × 2–18 mm, margins entire, dentate, or lyrate-pinnatifid (when lobed, terminal lobes larger than lateral), apex obtuse, surfaces glabrous or sparsely to densely pubescent.

shortly petiolate or sessile;

blade oblanceolate, 0.4–4.2 cm × 1–8(–10) mm (smaller distally), margins usually entire, repand, or obscurely toothed, rarely lobed.

(few- to several-flowered), not elongated in fruit.

sepals 2–4.5 mm, lateral pair saccate basally, (glabrous or densely pubescent);

petals white or purplish, spatulate or obovate, 4–10 × 1.5–4 mm, (claw to 2 mm, toothless);

filaments 2–4 mm.

sepals erect or ascending, usually oblong (or ovate), (lateral pair sometimes saccate or subsaccate basally);

petals white, lavender, or purplish [pink, purple], obovate, spatulate, or oblanceolate, claw differentiated from blade or not, (apex obtuse or emarginate);

stamens slightly tetradynamous;

filaments not dilated basally;

anthers oblong or ovate, (apex obtuse);

nectar glands confluent, subtending bases of stamens.

divaricate or ascending, 2–15 mm.

ascending, divaricate, or slightly reflexed, slender.

torulose, flattened, (1.5–)2–4.5 cm × 0.8–1.8 mm;

valves each with distinct midvein;

ovules 24–46 per ovary;

style 0–1 mm.

siliques, dehiscent, shortly stipitate or subsessile, linear, smooth or somewhat torulose, terete or latiseptate;

valves (papery), each not veined or midvein prominent or obscure, glabrous;

replum rounded;

septum complete;

ovules 15–80 per ovary; (style obsolete or distinct, to 1 mm);

stigma capitate.

light brown, (flattened), oblong, 0.8–1.4 mm;

cotyledons accumbent.

usually uniseriate, plump or flattened, not winged or margined, oblong, ovoid, or ellipsoid;

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

cotyledons usually accumbent, rarely incumbent.

= 5, 8.