Flora of North America species comparison

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

usually 1–5, turning reddish brown, (often ribbed) tomentose or glabrous.

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).

persistent or deciduous, mostly basal;

basal blades 4–12 cm;

cauline gradually reduced, 2–4 × 0.5–1.5 cm, 2–3-pinnately lobed, lobes linear to narrowly oblong, apices acute, faces densely to sparsely white-pubescent.

globose, 2–3 × 2–3.5(–6) mm.

broadly turbinate, 2.5–3(–5) × 2–3.5(–7) mm.

pistillate 6–25; functionally staminate 8–20;

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

pistillate 5–20; functionally staminate 12–30;

corollas pale yellow, sparsely hairy or glabrous.

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

(margins scarious) glabrous or villous-tomentose.

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

(pedunculate) in (mostly leafless) paniculiform arrays.

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

oblong-lanceoloid, somewhat compressed, 0.8–1 mm, faintly nerved, glabrous.

= 18.