Flora of North America species comparison

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

often several from base, erect to ascending or decumbent, branched distally, (5–)1–2.4(–3.2) 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.

not rosulate;

petiole (0.5–)1–3 cm;

blade 1- or 2-pinnatifid, 0.7–3.5 cm, margins (of lobes) entire or dentate.

sessile;

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

usually sessile, rarely shortly petiolate;

blade obovate to oblanceolate (in outline), 0.8–2 cm × 2–9 mm, base cuneate, auriculate or not, margins dentate to laciniate or pinnatifid.

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

rachis pubescent, trichomes often curved.

elongated in fruit;

rachis hirsute, trichomes mostly straight, cylindrical.

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 (tardily deciduous to somewhat persistent), ovate to broadly oblong, 0.7–1 × 0.4–0.6 mm;

petals (absent or rudimentary), white, linear-oblanceolate, 0.1–0.7 × 0.05–0.15 mm, claw absent;

stamens 2, median;

filaments 0.7–1 mm;

anthers 0.15–0.2 mm.

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

divaricate to horizontal, usually slightly recurved, rarely straight, (terete), 2–3.5(–5) × 0.2–0.3 mm, puberulent adaxially or, rarely, throughout.

(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.

orbicular to broadly obovate or elliptic, 2.2–3.5 × 2–3 mm, apically winged, apical notch 0.2–0.3 mm deep;

valves thin, smooth, not veined, glabrous or sparsely puberulent (along margin);

style to 0.1 mm, included in apical notch.

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

ovate, 1.2–1.6 × 0.7–1 mm.

= 16.