Flora of North America species comparison

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

relatively numerous, erect, gray, simple (annual flowering branches leafy), loosely sericeous.

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).

(semideciduous) cauline (sessile), gray-green;

blades oblanceolate, 0.5–3 × 0.2–1.5 cm (bases attenuate), 3-lobed or irregularly palmatifid (lobes narrow, apices acute), sparsely sericeous-lanate.

globose, 2–3 × 2–3.5(–6) mm.

globose, 3.5–5 × 4–5 mm.

pistillate 6–25; functionally staminate 8–20;

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

pistillate 8;

bisexual 20–35;

corollas yellow (tubular with broad throats), ca. 2 mm, glandular.

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

ovate, sparsely sericeous.

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

(mostly erect, peduncles 0 or to 25 mm) in racemiform arrays (4–)8–12(–14) × (0.5–)1–2(–4) cm.

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

(light brown) oblanceoloid (4–5-angled, broadest at truncate apices), 0.3–0.5 mm, glandular-pubescent (pappi coroniform, 0.3–0.6 mm, irregularly lacerate).

= 18.