Flora of North America species comparison

erect to decumbent, unbranched or branched distally, densely pubescent.

several from base, unbranched or branched distally, 0.3–1.8 dm, trichomes simple, 0.3–0.6 mm, mixed with smaller, dendritic ones.

basal and cauline;

petiolate or sessile;

basal rosulate, petiolate, blade margins usually 1- or 2-pinnatisect, rarely entire.

petiole 1–6 cm, ciliate, trichomes simple;

blade obovate, ovate, suborbicular, or oblong in outline, (terminal segments obovate or oblong), 0.5–2.5 cm × 5–15 mm, (terminal segments 0.2–1 cm × 1.5–5 mm), margins pinnatisect or pinnatifid, apex obtuse or rounded.

shortly petiolate or sessile;

blade similar to basal, smaller distally.

(corymbose, several-flowered), often considerably elongated in fruit.

elongated and dense in fruit.

sepals (sometimes persistent), oblong [ovate];

petals spatulate to obovate or suborbicular, (longer than sepals), claw differentiated from blade, (apex rounded);

stamens slightly tetradynamous;

filaments often dilated basally;

anthers ovate or oblong, (apex obtuse);

nectar glands usually confluent, subtending bases of stamens, median glands present or not.

sepals (persistent), 2–2.5 mm;

petals usually white, rarely pinkish, spatulate to obovate, 3.5–4.5 × 1.5–2.5 mm, narrowed to claw, 0.5–1.5 mm, apex rounded;

anthers oblong, 0.5–0.6 mm.

ascending, spreading, suberect, or divaricate [recurved], slender.

suberect to ascending, (subappressed to rachis, often forming less than 40˚ angle), proximalmost sometimes bracteate, 3–10 mm, pubescent, trichomes simple (to 1 mm), mixed with smaller, dendritic ones.

siliques or silicles, usually sessile, rarely shortly stipitate, linear, oblong, obovoid, ellipsoid, spatulate, oblanceolate, suboblong, or pyriform [fusiform, ovoid, suborbicular], smooth, 4-angled, angustiseptate, terete, or subterete [latiseptate];

valves each with prominent or obscure midvein, usually glabrous;

replum rounded;

septum complete or perforated;

ovules 4–18 per ovary;

stigma capitate.

suberect to ascending, ovoid to suboblong, terete or slightly flattened, 2–6 × 2–3 mm, base and apex obtuse;

valves each with obscure midvein;

ovules 4–8 per ovary;

style 0.2–1 mm.

plump, not winged, usually oblong, rarely oblong-lanceolate;

seed coat (minutely reticulate), not mucilaginous when wetted;

cotyledons incumbent or accumbent.

1–1.5 × 0.6–0.7 mm.