Flora of North America species comparison

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

(5–20), gray-green, glabrescent.

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.

persistent, gray-green, mostly basal;

proximal blades reduced, mostly less than 1 cm, lobed or entire;

distal blades 1–2 × 0.5–0.8 cm, 1–2-ternately lobed, lobes 1–2 mm wide, apices acute, faces densely tomentose.

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

globose, 3–4 × 3–4 mm.

pistillate 5–20; functionally staminate 12–30;

corollas pale yellow, sparsely hairy or glabrous.

pistillate 4–7; functionally staminate 5–9;

corollas yellow, usually red-tinged, 2–3 mm, glabrous.

(margins scarious) glabrous or villous-tomentose.

(margins scarious, obscured) white-tomentose.

(pedunculate) in (mostly leafless) paniculiform arrays.

(mostly 6–15, 1 or 3–4 on lateral branches; mostly erect, sessile or pedunculate) in racemiform-paniculiform arrays, 5–8 × 0.5–0.8 cm.

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

(brown) ellipsoid (angled), 0.8–1 mm, (sometimes with white ribs) glabrous.