Flora of North America species comparison

glabrous or sparsely tomentose (especially distally).

floccose-tomentose, unevenly glabrescent (persistently hairy on abaxial leaf faces).

usually 1 (relatively thin, delicate).

usually single, sometimes loosely clustered.

evenly distributed;

sessile;

blades oblanceolate to lance-linear, 2–4 × 0.5–1 cm, bases sometimes weakly clasping, margins usually subpinnate to dentate, sometimes subentire (distal leaves bractlike).

± evenly distributed (basal and proximal sometimes withering before flowering);

petiolate (proximal) or sessile;

blades ovoid or oblong to spatulate (usually pinnatifid to pinnatisect, lobes ± lanceolate to linear), (3–)5–12 × (1.5–)2–4 cm, bases tapered to ± truncate, ultimate margins (often revolute) dentate or entire.

0 or 1–5;

corolla laminae 0.5–1+ mm (barely surpassing phyllaries, heads perhaps technically disciform).

± 13;

corolla laminae 12–15 mm.

± 8 or ± 13, 5–6 mm, tips greenish.

± 13, 5–7 mm, tips green or greenish.

0 or of 1–3+ lance-deltate bractlets.

of 4–6(–10) bractlets (lengths to 1/2 phyllaries).

4–10+ in open, cymiform arrays.

20–60 in corymbiform arrays.

densely hairy.

hairy.

= 40.