Flora of North America species comparison

few to several from base, erect to ascending or decumbent, branched distally, 1–4.5(–7) dm.

simple or few from base (caudex), erect to ascending, unbranched or branched distally, (0.3–)0.5–1.5(–1.7) dm.

(soon withered);

not rosulate;

petiole 0.5–4(–6) cm;

blade 1- or 2-pinnatisect, 1–6(–8) cm, margins (of lobes) entire or dentate (sometimes deeply lobed).

not rosulate;

petiole 0.3–0.8 cm, (papery);

blade linear, (0.5–)1–7(–8) cm × 10–36 mm, margins entire.

shortly petiolate to subsessile;

blade similar to basal, smaller and less divided distally, lobes lanceolate to oblong or elliptic, 1.5–3.5(–4.5) cm ×5–12 mm, base not auriculate, margins (of lobes) entire, serrate, or incised.

sessile;

blade linear, base attenuate, not auriculate, margins entire, (similar to basal, smaller distally).

elongated in fruit;

rachis glabrous or pubescent, trichomes straight, cylindrical.

slightly elongated in fruit;

rachis puberulent, trichomes straight.

sepals (tardily deciduous), ovate, 0.5–0.7(–0.9) mm;

petals white, elliptic to linear, 0.4–0.5 × ca. 0.1 mm, claw absent;

stamens 2, median;

filaments 0.3–0.6 mm;

anthers 0.1–0.2 mm.

sepals (sometimes somewhat persistent), oblong-obovate, 1.8–2.8 × 1.3–1.8 mm;

petals white to pale yellow, suborbicular to broadly obovate, 3.2–4.6 × 2.5–3.2 mm, claw 0.5–1.5 mm;

stamens 6;

filaments 1.8–2.6 mm, (glabrous);

anthers 0.5–0.8 mm.

divaricate to horizontal, straight slightly recurved, (terete), 1.4–2.5(–4) × 0.15–2 mm, glabrous or sparsely pubescent adaxially.

divaricate-ascending, straight, (terete), 3–8 × 0.3–0.4 mm, puberulent throughout.

schizocarpic, didymous, 1.3–1.7 × 2–2.5 mm, apically not winged, apical notch 0.2–0.4 mm deep;

valves thick, rugose, strongly veined, glabrous;

style absent or obsolete, included in apical notch.

ovate, 4–5.5(–6.2) × 3–3.8 mm, apically winged, apical notch 0–0.2 mm deep;

valves thin, smooth, not veined, glabrous;

style 0.5–1.2 mm, exserted beyond apical notch.

ovate, 1–1.2 × 0.7–0.8 mm.

ovate, 2.2–2.8 × 1.4–1.6 mm.

= 32.