Flora of North America species comparison

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

relatively few to relatively numerous, erect, gray-green, simple or widely branched, hairy.

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).

cauline, uniformly gray-green, green, or white, or bicolor (white and green);

blades linear to broadly elliptic, 1.5–11 × 0.5–4 cm, entire or lobed to relatively deeply pinnatifid, faces hairy.

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

campanulate or turbinate, (1–)2–4(–5) × 2–5(–8) mm.

pistillate 3–8;

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

corollas bright yellow, 1.3–2.2 mm, glandular.

pistillate 5–12;

bisexual 6–45;

corollas yellow, sometimes red-tinged, 1.5–2.8 mm, glabrous.

broadly ovate, glandular (at least at bases).

(gray-green), lanceolate to ovate or obovate (margins narrowly hyaline), densely tomentose.

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

(erect to nodding, peduncles 0 or 2–5 mm) in congested to open (widely branched) arrays.

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

ellipsoid ca. 0.5 mm, (obscurely nerved) glabrous.

= 18.

= 18, 36, 54.