Flora of North America species comparison

erect, unbranched or branched (few) distally.

basal and cauline;

petiolate;

basal not rosulate, long-petiolate, (soon withered);

cauline petiolate, blade (base hastate, not auriculate), margins entire or proximalmost lobed.

petiolate or sessile;

blade base auriculate or not, margins entire, dentate, or pinnately lobed.

usually simple, rarely forked or dendritic [subdendritic], sometimes absent.

(reflexed at anthesis, several-flowered, lax, proximal flowers sometimes bracteate), considerably elongated in fruit.

usually ebracteate, often elongated in fruit.

sepals ascending, narrowly lanceolate, lateral pair not saccate basally;

petals (ascending), white, linear, (only slightly longer than sepals, slightly crisped), claw obovate or oblanceolate, (distinctly wider than blade);

stamens subequal (well-exserted beyond petals);

filaments slightly dilated basally;

anthers linear, (apiculate, coiled after dehiscence);

nectar glands confluent, lateral annular or semi-annular, median glands present.

usually actinomorphic, rarely zygomorphic;

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

petals white, yellow, orange, pink, lilac, lavender, purple, green, brown, or nearly black, claw present, often distinct;

filaments unappendaged, not winged;

pollen 3-colpate.

straight or curved upward, stout.

long-stipitate, linear, subtorulose, subterete or slightly compressed;

valves each with prominent midvein extending full-length;

replum rounded;

septum complete;

ovules 40–60 per ovary;

style obsolete or distinct;

stigma capitate, entire.

usually siliques, rarely silicles, usually dehiscent, unsegmented, usually terete, 4-angled, or latiseptate;

ovules 1–210[–numerous] per ovary;

style obsolete, distinct, or absent;

stigma usually entire or 2-lobed (subentire in Sibaropsis, Streptanthella).

uniseriate, plump, winged distally, oblong;

seed coat not mucilaginous when wetted;

cotyledons obliquely accumbent.

usually biseriate or uniseriate, rarely aseriate;

cotyledons accumbent or incumbent.