Flora of North America species comparison

simple from base, erect, branched distally, (1–)2–8(–10) dm.

simple from base, erect, branched distally, (2–)3.5–12(–15) dm.

(withered by anthesis);

not rosulate;

petiole 1–4 cm;

blade 1- or 2-pinnatifid or pinnatisect (lobes ovate to oblong), 2–8(–10) cm, margins (of lobes) entire or dentate.

not rosulate;

petiole 1–9(–14) cm;

blade elliptic-ovate to oblong, (2–)3.5–15(–25) cm × (5–)15–50(–80) mm, (leathery), margins entire or serrate.

petiolate;

blade similar to basal, usually less divided, rarely undivided, (distal) often linear, bases not auriculate, margins entire.

sessile or shortly petiolate;

blade oblong to elliptic-ovate or lanceolate, (1–)2–9(–12) cm × 3–45 mm, base cuneate, not auriculate, margins serrate or entire.

considerably elongated in fruit;

rachis glabrous.

(subcorymbose panicles), slightly elongated or not in fruit;

rachis glabrous or sparsely puberulent, trichomes straight, cylindrical.

sepals oblong-obovate, 1–1.8 × 0.5–0.8 mm;

petals white or lavender, spatulate to obovate, 2–3.5(–4) × 0.7–1.4 mm, claw 1–1.4 mm;

stamens 6;

filaments (median pairs) 1.5–2 mm, (glabrous);

anthers 0.4–0.5 mm.

sepals suborbicular to ovate, 1–1.4 × 0.8–0.9 mm;

petals white, obovate, 1.8–2.5 × (0.8–)1–1.3 mm, claw 0.7–1 mm;

stamens 6;

filaments 0.9–1.4 mm, (glabrous);

anthers 0.4–0.5 mm.

suberect to ascending, appressed to rachis, straight, (terete or slightly flattened), 1.5–4(–6) × 0.4–0.6 mm, glabrous.

ascending to divaricate, straight or slightly curved, (terete), 2–5(–6) × 0.1–0.2 mm, glabrous or puberulent adaxially.

broadly ovate or ovate-oblong, (4–)5–6.4(–7) × 3–4.5(–5.6) mm, apically broadly winged, apical notch 0.2 0.8 mm deep;

valves thin, smooth, not veined, glabrous;

style 0.1–0.5(–0.8) mm, usually included in, rarely subequaling, apical notch.

oblong-elliptic to broadly ovate or suborbicular, (1.6–)1.8–2.4(–2.7) × 1.3–1.8 mm, apically not winged, apical notch 0(–0.1) mm deep;

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

style 0.05–0.15 mm, exserted beyond apical notch (when present).

(reddish brown), ovate-oblong, 2–2.7(–3) × 1–1.5 mm, (3-lobed).

oblong, (0.8–)1–1.2 × 0.6–0.9 mm.

= 16, 32.

= 24.