Flora of North America species comparison

pilose, trichomes appressed, malpighiaceous, or minutely stalked, forked, plants rarely glabrescent.

blade surfaces pubescent, trichomes sessile, forked, and/or stellate.

petiolate or sessile;

blade base auriculate or not, margins entire or dentate.

stalked or sessile, usually stellate, dendritic, cruciform, or forked, sometimes mixed with simple ones, rarely malpighiaceous.

usually ebracteate, often elongated in fruit.

actinomorphic;

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

petals white, yellow, orange, pink, or purple, claw usually present, usually distinct;

filaments unappendaged, not winged;

pollen 3-colpate.

(4–)4.5–6(–6.5) cm;

style 0.5–1.3 mm.

silicles or siliques, usually dehiscent, very rarely indehiscent, unsegmented, latiseptate or terete;

ovules 2–70(–88)[–110+] per ovary;

style usually distinct, sometimes obsolete;

stigma usually entire, rarely 2-lobed.

biseriate or uniseriate [rarely aseriate];

cotyledons accumbent.