Flora of North America species comparison

usually ascending (prostrate in fruit), unbranched, 0.3–1.6 dm, moderately pubescent.

blade margins pinnatifid or entire, surfaces moderately pubescent.

(sometimes absent), usually petiolate or sessile, sometimes subsessile;

blade base not auriculate, margins usually entire or dentate, rarely lobed.

short-stalked or sessile, stellate, forked, dendritic, malpighiaceous, or simple, rarely absent.

usually ebracteate, usually elongated in fruit.

petals white or purple-tinged, (3–)4–5.6 × (1.3–)2–3.3(–3.8) mm.

actinomorphic;

sepals erect [ascending to spreading], lateral pair seldom saccate basally;

petals white, pink, or purple [yellow], claw present, distinct or obscure;

filaments unappendaged, not winged;

pollen 3-colpate.

usually fertile and fully developed, not or weakly torulose, (1–)1.2–1.8(–2) mm wide;

septum often fenestrate (with circular perforations at regular intervals longitudinally or with a narrow, elliptical, longitudinal split at base or both).

silicles or siliques, usually dehiscent, unsegmented, terete or latiseptate [angustiseptate];

ovules 2–80[–numerous] per ovary;

style distinct or obsolete;

stigma entire or strongly 2-lobed.

usually biseriate or uniseriate (aseriate in Euclidium);

cotyledons accumbent or incumbent.

= 42.