Flora of North America species comparison

simple from base, erect, branched distally, (3.5–)4.5–16(–18) dm.

simple from base, erect, unbranched or branched (few) distally, (0.2–)0.5–1(–1.4) dm.

(soon deciduous), not rosulate;

petiole (1–)2–5.5(–7.5) cm;

blade pinnatifid, (2–)3–6.8(–9) cm × 10–30 mm, margins (of lobes) dentate to serrate.

(often deciduous);

not rosulate;

blade spatulate to oblanceolate, 1–2.5(–3.2) cm × 2–6(–9) mm, margins entire or apically 3(–5)-toothed or -lobed.

shortly petiolate or sessile;

blade narrowly lanceolate or oblanceolate to linear, 3–7 cm × (2.5–)4–10mm (smaller distally), base attenuate to cuneate, not auriculate, margins usually entire, rarely dentate.

sessile;

blade usually oblanceolate or oblong, rarely obovate, (0.8–)1.3–2.5 cm × (2–)4–7 mm, base obtuse or cuneate, not auriculate, margins entire or apically 3(–5)-toothed.

elongated in fruit;

rachis puberulent, trichomes straight or curved.

slightly elongated in fruit;

rachis puberulent, trichomes straight or curved.

sepals suborbicular to oblong, 0.8–1.5 × 0.7–1.2 mm;

petals white, suborbicular, 2.2–3.5(4) × 1.5–2.5 mm, claw 0.7–1.5 mm;

stamens 6;

filaments 1.5–2.5 mm, (glabrous);

anthers 0.3–0.4 mm.

sepals suborbicular to oblong-ovate, 1.2–2 × 1–1.5 mm;

petals white, obovate, 2–3.2(–4) × 1.5–2 mm, claw 0.5–1 mm;

stamens 6;

filaments 1.7–2.3 mm, (glabrous);

anthers 0.4–0.7 mm.

divaricate-ascending to horizontal, usually slightly recurved or somewhat sigmoid, rarely straight, (not winged), (3–)3.5–7.5(–8) × 0.2–0.3 mm, puberulent adaxially.

divaricate-ascending, straight, (slender or slightly stout, terete), (2.5–)3–4.2(–5) × 0.4–0.5mm, usually puberulent throughout, rarely glabrate.

broadly ovate, 2–3.5(–4) × 1.8–2.6(–3) mm, apically winged, apical notch 0.1–0.2mm deep;

valves thin, smooth, not veined, glabrous;

style (0.2–)0.3–0.6(–0.7) mm, exserted beyond apical notch.

suborbicular to broadly ovate, (2.5–)3–4.3(–5) × (2–)2.3–4 mm, apically winged, apical notch 0.1–0.4 mm deep;

valves thin, smooth, not veined, glabrous or sparsely puberulent;

style 0.5–1 mm, exserted beyond apical notch.

(dark brown), ovate, 1.4–1.8 × 0.8–1.1 mm.

oblong-ovate, (1.8–)2–2.3 × 1–1.2 mm.

= 32.