Flora of North America species comparison

often erect, sometimes ascending, rarely subprostrate or decumbent, often branched distally, sometimes unbranched.

erect, branched proximally and distally, (1–)2–6(–7.5) dm, glabrous or sparsely pubescent at least basally.

basal and cauline;

petiolate or sessile;

basal rosulate or not, petiolate, blade margins dentate, sinuate, lyrate, runcinate, or pinnately lobed [entire];

cauline similar to basal, (blade smaller distally).

not rosulate;

petiole (0.5–)1–4.5(–6) cm;

blade oblanceolate or oblong (in outline), (1.5–)3–12(–15) cm × (5–)10–60(–90) mm, margins runcinate to pinnatisect;

lobes (1–)2–6(–8) on each side, oblong or lanceolate, smaller than terminal lobe, margins entire, dentate, or lobed.

similar to basal; (distalmost) blade (smaller, to 2 cm wide), margins entire or 1–3-lobed.

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

sepals ovate or oblong, (glabrous or pubescent);

petals yellow, obovate, spatulate, oblong, or suborbicular, (longer than sepals), claw differentiated from blade, (subequaling or longer than sepals, apex obtuse or emarginate);

stamens tetradynamous;

filaments not dilated basally;

anthers oblong, (apex obtuse);

nectar glands confluent, subtending bases of stamens, median glands present.

sepals erect, oblong, 2–2.5 × 1–1.5 mm;

petals oblong-oblanceolate, 2.5–3.5(–4) × 1–1.5 mm, claw 1–1.5 mm;

filaments 2.5–4 mm;

anthers ovate, 0.5–0.9 mm.

ascending, divaricate, or erect, slender or stout (sometimes as wide as fruit).

divaricate or ascending, slender, much narrower than fruit, (5–)7–12(–20) mm.

usually sessile, rarely shortly stipitate (gynophore to 1 mm), usually linear, rarely lanceolate or subulate, smooth or torulose;

valves each with prominent midvein and 2 conspicuous marginal veins, usually glabrous, rarely pubescent;

replum rounded;

septum complete;

style subclavate [clavate, conical, cylindrical];

stigma capitate (lobes not decurrent).

(divaricate to ascending, young fruits overtopping flowers), narrowly linear, straight or slightly curved inward, slightly torulose, slender, (2.5–)3–4(–5) cm × 0.9–1.1 mm;

valves glabrous;

ovules 40–90 per ovary;

style 0.2–0.5 mm;

stigma prominently 2-lobed.

plump, not winged, oblong [ovoid];

seed coat (reticulate or papillate), not mucilaginous when wetted;

cotyledons incumbent.

0.8–1 × 0.5–0.6 mm.

= 7.

= 14.