Flora of North America species comparison

erect, branched distally.

basal and cauline;

petiolate and sessile;

basal rosulate, long-petiolate, blade margins crenate or pinnatifid [entire];

cauline petiolate or sessile distally, blade margins crenate, serrate, pinnatifid, pinnatisect [laciniate].

([often corymbose-paniculate], several-flowered), considerably elongated in fruit.

sepals spreading or ascending, ovate or oblong, lateral pair not saccate basally, (glabrous);

petals white, obovate, or oblanceolate [spatulate, oblong], claw somewhat differentiated from blade (relatively short, apex obtuse);

stamens slightly tetradynamous;

filaments slightly dilated basally;

anthers ovate [oblong or linear], (apex obtuse);

nectar glands confluent, subtending bases of stamens, median glands present.

ascending, divaricate, or slightly reflexed, slender.

silicles, sessile, oblong, ovate, elliptic, or orbicular, angustiseptate;

valves each not veined;

replum rounded;

septum perforated or reduced to a rim;

ovules 8–12[–20] per ovary;

style obsolete or distinct;

stigma capitate, (sometimes 2-lobed).

biseriate, plump, not winged, ovate [oblong];

seed coat (punctate) not mucilaginous when wetted;

cotyledons accumbent.