Flora of North America species comparison

erect or ascending, unbranched or branched.

basal and cauline;

petiolate or sessile;

basal rosulate or not, petiolate, blade margins dentate to lyrate-pinnatifid, [pinnatipartite];

cauline shortly petiolate or sessile, blade (base not auriculate), similar to basal.

(corymbose, bracteate throughout or basally), greatly elongated in fruit.

sepals erect, oblong [linear], lateral pair not saccate basally;

petals yellow or white, obovate to oblanceolate or oblong, gradually attenuated to short claw, (apex rounded);

stamens tetradynamous;

filaments not dilated basally;

anthers oblong or linear, (base sagittate, apex obtuse);

nectar glands distinct, median glands present.

ascending to divaricate [spreading], slender.

siliques, dehiscent, subsessile, segments 2, linear, often torulose, subterete or 4-angled; (terminal segment stylelike, seedless);

valves each with prominent midvein, glabrous;

replum rounded;

septum complete;

ovules 10–60 per ovary;

stigmas capitate, entire or 2-lobed.

uniseriate, plump, not winged, elliptic [oblong, ovoid];

seed coat (usually reticulate), slightly mucilaginous when wetted;

cotyledons conduplicate.

= 7, 8, 9.