Flora of North America species comparison

light brown to gray-green (woody, somewhat pliable, leafy), persistently canescent to glabrescent.

relatively numerous, erect, brown, mostly simple (brittle, bases woody) canescent or glabrate.

deciduous, whitish gray or green to dark gray-green;

blades narrowly elliptic to lanceolate, 1.5–8 × 0.2–1 cm, usually entire, sometimes irregularly lobed, sparsely to densely hairy.

cauline, grayish green;

sessile (proximalmost short-petiolate);

blades triangular to ovate, 1–5 × 1–3 cm, 2–3-pinnatifid (lobes 0.5–1 mm wide, acute), faces pubescent (abaxial) or hairy to glabrate (adaxial).

(subtended by green, leaflike bracts) narrowly to broadly campanulate, 3–4 × 2–5 mm.

spheric, 1.5–2(–3) mm.

4–20;

corollas 2–3 mm, resinous (style branches ellipsoid, to 2.3 mm, exsert, gland-dotted).

pistillate 10–12;

bisexual 40–45;

corollas pale yellow, 0.2–0.3 mm, sometimes gland-dotted (stigma lobes relatively short, not emerging from tubes, short-ciliate).

ovate or lanceolate (scarious margins nearly invisible), densely canescent.

(subequal) linear, hairy.

in (congested, leafy) paniculiform arrays 10–20 × 0.2–7 cm.

(nodding) in paniculiform arrays 10–22 × 2–4 cm.

(light brown) 1–2.3 mm, resinous.

ellipsoid (angled), 0.1–0.2 mm, glabrous.

= 18.