Flora of North America species comparison

erect or decumbent, unbranched or branched distally.

basal and cauline;

petiolate or sessile;

basal usually rosulate, petiolate, blade margins entire, dentate, or lyrate-pinnatifid, (apex obtuse to acute);

cauline sessile, blade (base attenuate, not auriculate), margins entire, subentire, dentate, or pinnatifid.

(sometimes absent);

petiolate, subsessile, or sessile;

blade base auriculate or not, margins usually entire or dentate, rarely pinnatifid.

often short-stalked, sessile, or subsessile, usually forked or dendritic, rarely malpighiaceous, sometimes simple or absent.

(corymbose, several-flowered), considerably elongated in fruit.

ebracteate, often elongated in fruit.

sepals (erect), oblong;

petals white, oblanceolate-spatulate, (longer than sepals, claw obscurely differentiated from blade, apex rounded);

stamens slightly tetradynamous;

filaments not dilated basally, (slender);

anthers ovate or oblong, (apex obtuse);

nectar glands confluent, subtending bases of stamens.

actinomorphic;

sepals erect, ascending, or spreading, lateral pair usually not saccate basally;

petals white, yellowish, pink, lavender, or purple, claw present, often indistinct;

filaments unappendaged, not winged;

pollen 3-colpate.

ascending to subdivaricate, (straight), slender, (terete).

subsessile or shortly stipitate (gynophore less than 1 mm), linear, slightly to strongly torulose, subterete to strongly latiseptate;

valves each without midvein or with obscure one on proximal 1/2, sparsely to densely pubescent or glabrescent;

replum rounded;

septum complete;

ovules 12–30 per ovary; (style obsolete or distinct);

stigma capitate.

usually siliques, rarely silicles, dehiscent, unsegmented, usually latiseptate, rarely terete or slightly angustiseptate;

ovules [2–]4–250 per ovary;

style usually distinct, rarely obsolete;

stigma usually entire, rarely 2-lobed.

uniseriate, plump, not winged, oblong;

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

cotyledons incumbent.

biseriate, sub-biseriate, uniseriate, or, rarely, aseriate;

cotyledons accumbent or incumbent.

= 7.