Flora of North America species comparison

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

gray-green to brown, glabrate (diffusely branched from bases, brittle).

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.

(vegetative stems) persistent, gray-green;

blades broadly to narrowly cuneate, 3–10 × 2–5 mm, lobed (lobes 3, oblong-linear, to 1/3 blade lengths, mostly 1–3 mm wide, flat, obtuse, laterals sometimes 2–3-fid; leaves on flowering stems deciduous, blades narrowly cuneate, deeply 3-lobed), faces densely hairy (not sticky resinous).

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

campanulate or globose-ovoid, (1.5–)2–4(–5) × 1.5–4.5 mm.

pistillate 5–20; functionally staminate 12–30;

corollas pale yellow, sparsely hairy or glabrous.

4–6(–10);

corollas 1.5–2 mm, glabrous.

(margins scarious) glabrous or villous-tomentose.

(margins green) ovate (outer) to oblong, pubescent or tomentose.

(pedunculate) in (mostly leafless) paniculiform arrays.

usually borne singly, rarely (1–4, erect, mostly sessile, in pedunculate clusters) in spiciform or paniculiform arrays 2–9 × 0.5–2 cm (branches slender).

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

(light brown) 0.7–0.8 mm, resinous.