Flora of North America species comparison

simple or several from base, erect or ascending, branched distally, (1–)1.5–3.5(–5) dm.

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

(often withered by anthesis);

not rosulate;

petiole 0.5–1.5 cm;

blade obovate to oblanceolate, (1–)2–6(–7) cm × 3–20 mm, margins dentate to sinuate.

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.

sessile;

blade oblong or lanceolate, 1–5(–8) cm × (3–)5–15(–30) mm, base sagittate, margins dentate or subentire, (surfaces pubescent).

sessile;

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

(usually corymbose, rarely paniculate), rarely elongated in fruit;

rachis pubescent, trichomes often curved.

elongated in fruit;

rachis puberulent or glabrous.

sepals oblong, 1.4–2 × 0.7–1 mm;

petals white, broadly obovate, (2.2–)2.8–4 × 1–3 mm, claw 1–1.4 mm;

stamens 6;

filaments 2–2.5 mm, (glabrous);

anthers 0.4–0.5 mm.

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.

divaricate to ascending, straight or slightly curved, (terete), 3–9(–12) × 0.2–0.3 mm, pubescent.

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

(indehiscent), globose or, rarely, subglobose, (2–)3–4.4(–5) mm diam., (inflated), apically not winged, apical notch absent;

valves thin, smooth, not veined, densely puberulent;

style 0.5–1.5 mm.

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.

(brown or dark brown), ovoid, 1.5–2 × 1–1.5 mm.

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

= 16.

= 32.