Flora of North America species comparison

erect [ascending], unbranched or branched proximally, branched distally.

basal and cauline;

petiolate or sessile;

basal not rosulate, petiolate, blade margins dentate, pinnatifid, or lobed;

cauline sessile, subsessile, or shortly petiolate, blade (base not auriculate), margins entire or lobed.

petiolate, sessile, or subsessile;

blade base usually not auriculate (except Paysonia), margins entire, dentate, or sinuate.

usually short-stalked, subsessile, or sessile, sometimes long-stalked, stellate, scalelike, subdendritic, or forked, sometimes mixed with simple ones.

(corymbose), considerably elongated in fruit.

ebracteate, often elongated in fruit.

sepals widely spreading to reflexed, oblong, (equal), lateral pair not saccate basally;

petals (spreading), white or lavender, obovate (longer than sepals), claw well-differentiated from blade, (apex rounded);

stamens (somewhat spreading), tetradynamous;

filaments not dilated basally;

anthers oblong [sagittate];

nectar glands distinct, lateral and median present; (gynophore to 0.5 mm).

actinomorphic;

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

petals white, yellow, lavender, purple, violet, orange, or brown [pink], claw present, often distinct;

filaments unappendaged, not winged;

pollen (3 or) 4–11-colpate.

divaricate, sometimes ascending or slightly reflexed, slender.

silicles, subsessile, breaking into two 1-seeded units at maturity, didymous, suborbicular, or broader than long, winged, strongly angustiseptate;

valves keeled, enclosing seeds when falling off, not winged, narrowly winged, or margined, indurated around margin, glabrous or pubescent;

replum concealed by valve margin;

septum complete (ca. 0.1 mm wide);

ovules 2 per ovary;

style relatively short or obsolete, (terete or flattened);

stigma conical, decurrently 2-lobed (appearing entire).

silicles or siliques, dehiscent, unsegmented, terete, latiseptate, or angustiseptate;

ovules 2–100 per ovary;

style usually distinct;

stigma entire or strongly 2-lobed.

aseriate, strongly flattened, not winged, broadly oblong to suborbicular;

seed coat (smooth), not mucilaginous when wetted;

cotyledons accumbent to obliquely incumbent.

biseriate, uniseriate, or aseriate;

cotyledons accumbent or incumbent.

= 9.