Flora of North America species comparison

1–3, erect, white, tomentose (on distal branches, hairs appressed) or glabrate.

1–5, erect, whitish gray, densely tomentose.

basal and cauline, bicolor (white and green);

blades (basal) linear to broadly lanceolate, 3–7(–10) × 2–5(–6) cm, coarsely pinnately lobed (cauline becoming linear distally), faces tomentose (abaxial) or glabrous (adaxial).

mostly basal (cauline 1–4), greenish to whitish green;

blades (basal) 1–4.5 × 0.6–1.5 cm, 1–2-ternately to palmately lobed (flowering-stem blades 3-lobed), faces sparsely hairy.

broadly campanulate, 4–5 × 3.5–4 mm.

campanulate or hemispheric, 3.5–6 × 6–11 mm.

pistillate 9;

bisexual 25–60;

corollas yellow, 1.5–3 mm, glabrous (style branches included, erect, linear, relatively short, short-ciliate).

pistillate 9–10;

bisexual 20–30;

corollas yellow or reddish black, 2–3 mm, sometimes glandular.

(violet-brown) oval (outer) to elliptic or lanceolate, sparsely tomentose.

lanceolate (margins brown), pilose.

in compact to broadly branched, paniculiform arrays 1–20 × 2–6 cm.

(2–20, peduncles 0 or to 25 mm) in subcapitate to capitate arrays 2–3 × 2–3 cm.

oblong-linear (angular), 1.2–1.5 mm, glabrous.

oblong, 1.5–2.5 mm, (apices flattened) glabrous.

= 18, 36.