Flora of North America species comparison

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

relatively many, erect, green, simple, glabrous.

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, green;

blades broadly lanceolate to narrowly elliptic, 1.5–11 × 1–1.5 cm, 2-pinnately lobed, (ultimate lobes toothed), faces white-tomentose (abaxial) or glabrous (adaxial), yellow-gland-dotted.

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

campanulate, 3(–4) × 2–5.5 mm.

pistillate 5–20; functionally staminate 12–30;

corollas pale yellow, sparsely hairy or glabrous.

pistillate 9–12;

bisexual 15–35;

corollas yellow, 1–1.5 mm, glandular.

(margins scarious) glabrous or villous-tomentose.

(yellow-green, rarely purplish) broadly ovate, glabrous or sparsely hairy, yellow-gland-dotted.

(pedunculate) in (mostly leafless) paniculiform arrays.

(erect to nodding, peduncles 0 or to 10 mm) in paniculiform to spiciform arrays 8–15 × 1–1.5 cm.

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

(yellow to light brown) ellipsoid, ca. 0.5 mm, glabrous or glandular.

= 18, 36.