Flora of North America species comparison

usually 1–5, turning reddish brown, (often ribbed) tomentose or glabrous.

relatively few to relatively numerous, erect, gray-green, simple or widely branched, hairy.

persistent or deciduous, mostly basal;

basal blades 4–12 cm;

cauline gradually reduced, 2–4 × 0.5–1.5 cm, 2–3-pinnately lobed, lobes linear to narrowly oblong, apices acute, faces densely to sparsely white-pubescent.

cauline, uniformly gray-green, green, or white, or bicolor (white and green);

blades linear to broadly elliptic, 1.5–11 × 0.5–4 cm, entire or lobed to relatively deeply pinnatifid, faces hairy.

broadly turbinate, 2.5–3(–5) × 2–3.5(–7) mm.

campanulate or turbinate, (1–)2–4(–5) × 2–5(–8) mm.

pistillate 5–20; functionally staminate 12–30;

corollas pale yellow, sparsely hairy or glabrous.

pistillate 5–12;

bisexual 6–45;

corollas yellow, sometimes red-tinged, 1.5–2.8 mm, glabrous.

(margins scarious) glabrous or villous-tomentose.

(gray-green), lanceolate to ovate or obovate (margins narrowly hyaline), densely tomentose.

(pedunculate) in (mostly leafless) paniculiform arrays.

(erect to nodding, peduncles 0 or 2–5 mm) in congested to open (widely branched) arrays.

oblong-lanceoloid, somewhat compressed, 0.8–1 mm, faintly nerved, glabrous.

ellipsoid ca. 0.5 mm, (obscurely nerved) glabrous.

= 18, 36, 54.