Flora of North America species comparison

few to several from base, erect to ascending, branched throughout, (0.7–)1–4.8(–6.1) dm.

several from base, erect to ascending, branched distally, (1.8–)3–6(–7) dm.

often not rosulate;

petiole 1–6 cm;

blade pinnately lobed, (1–)1.5–8(–11) cm × (5–)10–35 mm, margins (of lobes) entire or denticulate.

not rosulate;

petiole 1–3 cm;

blade ovate to lanceolate, pinnatifid, 1–4.5 cm × 8–25 mm, margins (of lobes) entire.

sessile;

blade linear, (0.8–)1.3–7(–9.5) cm × (0.7–)1–2(–3) mm, base attenuate, not auriculate, margins entire.

shortly petiolate or sessile;

blade lanceolate to oblanceolate, 1.8–3.5 cm × 3–10 mm (smaller distally), base cuneate, not auriculate, margins entire or coarsely serrate.

elongated in fruit;

rachis puberulent or glabrous.

(subcorymbose panicles), individual racemes slightly elongated;

rachis puberulent, trichomes straight.

sepals ovate to oblong, 1–2 × 0.8–1 mm;

petals white, suborbicular, 2–3 × 1–2 mm, claw 0.5–1.5 mm;

stamens 6;

filaments 1.5–2 mm, (glabrous);

anthers 0.2–0.4 mm.

sepals suborbicular to broadly ovate, 1.2–2 × 1.2–1.5 mm;

petals white, suborbicular to obovate, 2–3.2 × 1.5–2 mm, claw 0.5–1 mm;

stamens 6;

filaments 1.4–1.7 mm, (glabrous);

anthers 0.4–0.5 mm.

divaricate to horizontal, straight or recurved to somewhat sigmoid, (terete), 3.5–8(–11) × 0.2 mm, glabrous or puberulent adaxially.

divaricate to horizontal, straight or slightly curved, (not winged), 4–7 × 0.2 mm, puberulent throughout.

broadly ovate, 2–3.7(–4.3) × (1.5–)1.8–2.9(–3.4) mm, apically winged, apical notch 0.1–0.3(–0.4) mm deep;

valves thin, smooth, not veined, glabrous;

style 0.2–0.6 mm, exserted beyond apical notch.

often broadly obovate, 2–3.3 × 1.8–2.5 mm, apically winged, apical notch 0.1–0.2 mm deep;

valves thin, smooth, not veined, glabrous;

style 0.2–0.8 mm, exserted beyond apical notch.

ovate, 1.5–1.8(–2) × 0.9–1.2(–1.5) mm.

ovate, 1.4–1.6 × 0.8–1 mm.

= 32.