Flora of North America species comparison

gray-green to brown, glabrate (diffusely branched from bases, brittle).

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

(vegetative stems) persistent, gray-green;

blades broadly to narrowly cuneate, 3–10 × 2–5 mm, lobed (lobes 3, oblong-linear, to 1/3 blade lengths, mostly 1–3 mm wide, flat, obtuse, laterals sometimes 2–3-fid; leaves on flowering stems deciduous, blades narrowly cuneate, deeply 3-lobed), faces densely hairy (not sticky resinous).

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.

campanulate or globose-ovoid, (1.5–)2–4(–5) × 1.5–4.5 mm.

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

4–6(–10);

corollas 1.5–2 mm, glabrous.

pistillate 5–12;

bisexual 6–45;

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

(margins green) ovate (outer) to oblong, pubescent or tomentose.

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

usually borne singly, rarely (1–4, erect, mostly sessile, in pedunculate clusters) in spiciform or paniculiform arrays 2–9 × 0.5–2 cm (branches slender).

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

(light brown) 0.7–0.8 mm, resinous.

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

= 18, 36, 54.