Flora of North America species comparison

1–3, erect, reddish brown, simple (leafy), glabrous or glabrate.

relatively numerous, erect, brown, branched, (woody, brittle), glabrous or sparsely hairy.

basal (in rosettes, petiolate) and cauline, bicolor (white and green);

blades ovate, 3–7(–20) × 2–4(–6) cm, 2–3-pinnately-lobed (lobes elliptic, 2–6 mm wide; cauline sessile, smaller), faces tomentose (abaxial) or glabrous or glabrescent (adaxial), glandular.

cauline, dark green;

blades broadly ovate, (2–)3–6 × 0.02–0.15 cm, 2–3-pinnatifid (lobes linear or filiform), faces sparsely hairy (abaxial) or glabrous (adaxial).

broadly ovate, 3–5 × 4–5(–6) mm.

ovoid, (1–)2–3.5 × (1–)2–2.5 mm.

pistillate 4–5(–13), (1–1.5 mm);

bisexual 25–35;

corollas yellow, 1.5–2 mm, glabrous.

pistillate 4–8(–15);

bisexual 14–16(–20);

corollas yellow, 0.5–1 mm, glandular.

broadly ovate, sparsely hairy.

oblong-elliptic, sparsely hairy.

(nodding, peduncles 0 or 2) in paniculiform to racemiform arrays 10–35 × 2–4 cm (often 1-sided).

(nodding at maturity) in open, widely branched arrays 10–30 × 2–10 cm.

elliptic, 0.5–0.8 mm, glabrous.

(light brown) ellipsoid (2–5-angled, flattened, furrowed), 0.5–1 mm, glabrous.

= 18.