Flora of North America species comparison

(5–20), gray-green, glabrescent.

3–20, erect, light brown, simple or branched, glabrous.

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 lanceolate, 1.5–5 × 1–2.5 cm, 2-pinnatifid (primary lobes 5–9, 0.4–1.5 cm; cauline smaller, pinnatifid to entire), faces tomentose (abaxial) or glabrous (adaxial).

globose, 3–4 × 3–4 mm.

campanulate to hemispheric, 2.5–3.5 × 2–4.5 mm.

pistillate 4–7; functionally staminate 5–9;

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

pistillate 3–8;

bisexual, sometimes functionally staminate, (15–)20–35;

corollas bright yellow, 1.3–2.2 mm, glandular.

(margins scarious, obscured) white-tomentose.

broadly ovate, glandular (at least at bases).

(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.

(peduncles 0 or to 3 mm) in usually paniculiform, sometimes racemiform, arrays 5–20 × 1.5–4 cm.

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

(light brown) ellipsoid (± arcuate, ribs 4, prominent), ca. 1 mm, glandular.

= 18.