Flora of North America species comparison

(1.5–)2–9(–12) dm.

(1–)2.5–8 dm.

petiole (0.5–)2–10(–17) cm;

blade lyrate-pinnatifid, (1–)2–8(–10) cm, lobes 1–3(–5) on each side (rarely early ones undivided), lateral lobes oblong or ovate, 0.3–2(–4) cm × 1–8(–15) mm, sometimes slightly fleshy, margins entire, repand, crenate, or dentate, terminal lobe (ovate or suborbicular), (0.7–)1.5–4.5(–7) cm × (4–)10–30(–50) mm, (surfaces glabrous or margins ciliate).

petiole (0.5–)1–6(–8) cm;

blade pinnatifid to pinnatisect, 1.5–11 cm, lobes (3–)6–10 on each side, lateral lobes oblong or ovate, 0.4–3 cm × 1–10 mm, not fleshy, margins entire, terminal lobe considerably larger than lateral ones, 1–5 cm × 10–350 mm.

blade ovate or suborbicular (undivided), margins usually coarsely dentate, rarely subentire; conspicuously auriculate, auricles ovate or narrowly oblong (to 10 × 5 mm), glabrous.

blade pinnatisect, lateral lobes 1–4, (oblong to lanceolate), margins often entire, rarely coarsely toothed; conspicuously auriculate, auricles ovate or narrowly oblong, (to 10 × 4 mm, margins entire).

sepals 3–4.5(–5) × 1–1.5 mm, lateral pair slightly saccate basally, margins scarious;

petals yellow, spatulate or oblanceolate, (5–)6–9(–10) × 1.5–2.5(–3.5) mm, base attenuate, apex rounded;

filaments 3–4.5 mm;

anthers 0.7–1.2 mm;

ovules 18–24(–28) per ovary;

gynophore to 0.5 mm.

sepals 3–5 × 0.7–1.5 mm, lateral pair slightly saccate basally, margins scarious;

petals yellow or pale yellow, oblanceolate to spatulate, (5–)6–7(–8.5) × 1.5–3 mm, base cuneate, apex truncate or emarginate;

filaments 3–5 mm;

anthers 0.8–1.2 mm;

ovules (34–)38–48(–52) per ovary;

gynophore to 0.3 mm.

divaricate to ascending or erect, 3–7 mm, terete or subquadrangular, thickened (narrower than fruit).

divaricate to ascending, (2–)3–6(–7) mm, terete, stout (almost as broad as fruit).

erect to erect-ascending, rarely appressed to rachis, torulose, terete, somewhat compressed, or 4-angled, (0.7–)1.5–3 cm × 1.2–2 mm;

style slender, (1–)1.5–3(–3.5) mm.

erect to ascending, not appressed to rachis, torulose, subterete to slightly latiseptate, (4.5–)5.3–7(–8) cm × 1.5–2 mm;

style stout, 0.2–1(–2) mm.

dark brown, plump, broadly ovoid to oblong or subglobose, 1.2–1.5 × 1–1.2 mm.

dark brown, somewhat plump, oblong or quadrate, 1.8–2.5 × 1.4–1.6 mm.

= 16.

= 16.