Flora of North America species comparison

erect, often branched basally.

basal and cauline;

sessile;

blade (base not auriculate), not rosulate, margins entire.

petiolate or sessile;

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

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

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

usually ebracteate, often elongated in fruit.

sepals erect, lanceolate- to ovate-oblong, (subequal), lateral pair obscurely subsaccate basally;

petals light purple- or pink-lavender (with darker purplish veins, adaxial pair slightly larger), spatulate, claw well-differentiated from blade, (apex slightly emarginate to obcordate);

stamens in 3 unequal pairs, (adaxial pair sterile);

filaments not dilated basally, (adaxial pair ± connate);

anthers ovate-oblong, (not apiculate);

nectar glands lateral, (minute), median glands absent.

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.

usually ascending, rarely straight, slender.

tardily dehiscent, sessile, linear, smooth, slightly latiseptate;

valves each with obscure midvein, glabrate, (margins minutely scabrous);

replum rounded;

septum complete;

ovules 24–44 per ovary;

style distinct;

stigma subentire.

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, flattened, obscurely winged distally, oblong;

seed coat not mucilaginous when wetted;

cotyledons incumbent, (linear).

usually biseriate or uniseriate, rarely aseriate;

cotyledons accumbent or incumbent.