Flora of North America species comparison

several from base, unbranched, (0.2–)0.5–1.4(–1.8) dm, trichomes simple, 0.5–1.2 mm, mixed with smaller, dendritic ones.

petiole 0.7–3.5 cm, ciliate, trichomes simple;

blade oblanceolate to obovate, or ovate to oblong in outline, (terminal segments linear, oblong, or ovate), 0.5–3 cm × 4–12 mm, (terminal segments 0.2–1.4 cm × 0.5–4 mm), margins usually pinnatifid, rarely apically 3 or 5-lobed, apex obtuse or subacute.

shortly petiolate or sessile;

blade similar to basal, smaller distally.

[rarely absent], petiolate, subsessile, or sessile;

blade base not auriculate, margins usually pinnately or palmately lobed, sometimes entire [dentate].

stalked, usually dendritic, stellate, or forked, sometimes mostly simple.

elongated in fruit.

usually ebracteate, often elongated in fruit.

sepals 2–3 mm;

petals white, suborbicular to obovate, 4–5 × 2–3 mm, narrowed to claw, 1.5–2 mm, apex rounded;

anthers oblong, 0.5–0.6 mm.

actinomorphic;

sepals suberect to spreading [erect], lateral pair not saccate basally;

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

filaments unappendaged, not winged;

pollen 3-colpate.

usually spreading to divaricate, rarely divaricate-ascending, (often forming greater than 40˚ angle, straight or upcurved), proximalmost bracteate, 4–12 mm, pubescent, trichomes simple mixed with smaller, dendritic ones.

divaricate-ascending, ellipsoid to oblong, 4-angled, 5–11 × 2–3 mm, base and apex cuneate;

valves each with prominent midvein;

ovules 8–12 per ovary;

style 0.1–0.5 mm.

silicles or siliques, dehiscent, unsegmented, 4-angled, angustiseptate, terete, or subterete [latiseptate];

ovules 4–30[–numerous] per ovary;

style distinct [obsolete];

stigma entire [rarely slightly 2-lobed].

1.7–2.2 × 0.9–1.1 mm.

uniseriate [biseriate];

cotyledons accumbent or incumbent.

= 12.