Flora of North America species comparison

relatively numerous, erect, green to brown or reddish brown, somewhat woody, glabrous.

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

proximal blades bright green and glabrous or gray-green and sparsely hairy, 5–8 cm;

cauline blades bright green (gray-green in desert forms), linear, lanceolate, or oblong, 1–7 × 0.1–0.5(–0.9) cm, mostly entire, sometimes irregularly lobed, acute, usually glabrous, sometimes glabrescent (deserts).

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.

globose, 2–3 × 2–3.5(–6) mm.

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

pistillate 6–25; functionally staminate 8–20;

corollas pale yellow, 1.8–2 mm, eglandular or sparsely glandular.

pistillate 5–12;

bisexual 6–45;

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

(light brown, broadly lanceolate, membranous): margins broadly hyaline, glabrous.

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

in terminal or lateral, leafy, paniculiform arrays 15–45 × 6–30 cm; appearing ball-like on slender, sometimes nodding peduncles.

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

oblong, 0.5–0.8 mm, faintly nerved, glabrous.

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

= 18.

= 18, 36, 54.