Flora of North America species comparison

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

simple from base, erect, unbranched or branched distally, (0.8–)1.2–5(–6.3) 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.

rosulate;

petiole (0.5–)1.5–6 cm;

blade oblanceolate or oblong, (1–)2–6(–8) cm × 5–15 mm, margins entire, lyrate, or pinnatifid.

sessile;

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

sessile; oblong, lanceolate, or narrowly deltate-lanceolate, (0.7–)1–4(–6.5) cm × (2–)5–10(–15) mm, base sagittate or auriculate, margins dentate or subentire.

elongated in fruit;

rachis puberulent or glabrous.

much-elongated in fruit;

rachis hirsute, trichomes spreading, 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 oblong, (1–)1.3–1.8 × 0.6–0.8 mm;

petals white, spatulate, (1.5–)1.8–2.5(–3) × (0.2–)0.5–0.7 mm, claw 0.6–1 mm;

stamens 6;

filaments (1.2–)1.5–1.8(–2) mm, (glabrous);

anthers 0.3–0.5 mm.

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

horizontal, straight or slightly recurved, (terete), (3–)4–8(–10) × 0.3–0.4 mm, hirsute.

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.

broadly oblong to ovate, (4–)5–6(–6.5) × (3–)4–5 mm, (curved adaxially), apically broadly winged, apical notch (0.2–)0.4–0.6 mm deep;

valves thin, papillate except for wing, not veined;

style 0.2–0.5(–0.7) mm, slightly exserted beyond, or included in, apical notch.

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

(dark brown), ovoid, 2–2.3(–2.8) × 1–1.4 mm.

= 32.

= 16.