Flora of North America species comparison

(5–20), gray-green, glabrescent.

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

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.

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).

globose, 3–4 × 3–4 mm.

ovoid, (1–)2–3.5 × (1–)2–2.5 mm.

pistillate 4–7; functionally staminate 5–9;

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

pistillate 4–8(–15);

bisexual 14–16(–20);

corollas yellow, 0.5–1 mm, glandular.

(margins scarious, obscured) white-tomentose.

oblong-elliptic, sparsely hairy.

(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.

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

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

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

= 18.