Flora of North America species comparison

erect to decumbent, branched basally, (slender).

basal and cauline;

petiolate or sessile [subsessile];

basal rosulate, petiolate, blade margins entire or dentate;

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

petiolate or sessile;

blade base auriculate or not, margins entire or dentate.

stalked or sessile, usually stellate, dendritic, cruciform, or forked, sometimes mixed with simple ones, rarely malpighiaceous.

(few- to several-flowered), elongated in fruit.

usually ebracteate, often elongated in fruit.

sepals erect, oblong, lateral pair saccate basally, (glabrous or pubescent);

petals usually purple to violet, rarely white [pink], obovate [spatulate], (apex obtuse);

stamens tetradynamous;

filaments narrowly winged, (lateral pair with toothed appendage);

anthers oblong [ovate];

nectar glands lateral, semi-annular, extrastaminal.

actinomorphic;

sepals erect, ascending, or spreading, lateral pair seldom saccate basally;

petals white, yellow, orange, pink, or purple, claw usually present, usually distinct;

filaments unappendaged, not winged;

pollen 3-colpate.

erect to divaricate, slender.

siliques or, rarely, silicles, sessile, ellipsoid, [linear, oblong, or elliptic], not torulose, terete or latiseptate;

valves each with distinct midvein, pubescent or, rarely, glabrous;

replum rounded;

septum usually complete, sometimes perforate;

ovules 10–40 per ovary; (style persistent);

stigma capitate.

silicles or siliques, usually dehiscent, very rarely indehiscent, unsegmented, latiseptate or terete;

ovules 2–70(–88)[–110+] per ovary;

style usually distinct, sometimes obsolete;

stigma usually entire, rarely 2-lobed.

biseriate, flattened, not winged, ovoid [elliptical];

seed coat not mucilaginous when wetted;

cotyledons accumbent.

biseriate or uniseriate [rarely aseriate];

cotyledons accumbent.