Flora of North America species comparison

(5–20), gray-green, glabrescent.

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

persistent, gray-green, mostly basal;

proximal blades reduced, mostly less than 1 cm, lobed or entire;

distal blades 1–2 × 0.5–0.8 cm, 1–2-ternately lobed, lobes 1–2 mm wide, apices acute, faces densely tomentose.

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.

globose, 3–4 × 3–4 mm.

globose, 1.5–2.5 × 1.5–2.5 mm.

pistillate 4–7; functionally staminate 5–9;

corollas yellow, usually red-tinged, 2–3 mm, glabrous.

pistillate (0–)10–20;

bisexual 18–24;

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

(margins scarious, obscured) white-tomentose.

(green) lanceolate, glabrous.

(mostly 6–15, 1 or 3–4 on lateral branches; mostly erect, sessile or pedunculate) in racemiform-paniculiform arrays, 5–8 × 0.5–0.8 cm.

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

(brown) ellipsoid (angled), 0.8–1 mm, (sometimes with white ribs) glabrous.

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

= 18.