Flora of North America species comparison

mostly 1, erect, green, turning to reddish brown with age, simple (smooth or ribbed), glabrous or sparsely hairy.

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

cauline, bright green;

blades triangular to broadly ovate, 2–5(–10) × 2–4 cm, 2–3-pinnatifid (lobes relatively narrow, ± toothed), faces glabrous, gland-dotted.

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).

globose, 1.5–2.5 × 1.5–2.5 mm.

globose, 2–3 × 2–3.5(–6) mm.

pistillate (0–)10–20;

bisexual 18–24;

corollas pale yellow (broadly campanulate), 0.5–1 mm, glabrous.

pistillate 6–25; functionally staminate 8–20;

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

(green) lanceolate, glabrous.

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

(nodding, peduncles 2–5 mm) in open, (diffusely branched, leafy) arrays 15–30(–40) × 10–20 cm.

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

oblong (flattened), 0.3–0.8 mm, glabrous.

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

= 18.

= 18.