Flora of North America species comparison

erect or ascending, often (paniculately) branched distally.

basal and cauline;

petiolate;

basal rosulate, petiolate (petioles deeply grooved), blade margins repand, sinuate, dentate, or pinnatifid;

cauline petiolate, blade (much smaller than basal), margins entire [dentate, sinuate].

(corymbose, several-flowered, buds globose), slightly or considerably elongated in fruit.

sepals spreading, ovate, lateral pair not saccate basally;

petals yellow [white], obovate to spatulate, claw slightly differentiated from blade, (apex emarginate, [2-fid or obtuse]);

stamens tetradynamous;

filaments dilated (winged or minutely appendaged) basally;

anthers ovate;

nectar glands lateral, 1 on each side of lateral stamen.

divaricate or ascending, slender.

sessile, ellipsoid to obovoid, or broadly obovate to orbicular [globose, elliptic], not torulose, terete or latiseptate;

valves each not veined, glabrous [pubescent];

replum rounded;

septum usually complete, rarely perforate;

ovules 4–8(–16) per ovary;

stigma capitate, usually 2-lobed, rarely subentire.

uniseriate or biseriate, flattened, winged [not winged], suborbicular [orbicular or elliptic];

seed coat not mucilaginous when wetted;

cotyledons incumbent or oblique.

= 8.