Flora of North America species comparison

lanate-arachnose or tomentose, unevenly glabrescent.

sparsely pubescent to tomentose (especially on abaxial leaf faces and among heads).

1(–2).

single or loosely clustered.

(often purplish abaxially) reduced distally;

petiolate;

blades ovate to subelliptic, (5–)6–10(–15) × (2.5–)3–5(–9) cm, bases tapered or contracted, margins subentire to denticulate (denticles callous; mid and distal leaves bractlike).

progressively reduced distally;

petiolate;

blades triangular, triangular-lanceolate, or lanceolate, 3–10(–15) × 1.5–4 cm, bases cordate to truncate or tapered, margins serrate or dentate (mid and distal leaves sessile, bractlike).

± 13;

corolla laminae 5–10 mm.

0.

(± 13) ± 21, 5–7 mm, tips green.

± 8, 6–9 mm, tips green.

of 2–5+ bractlets (largest to 3 mm).

of 2–5+ lance-deltate to filiform bractlets (lengths 1/5–1/2 phyllaries).

(2–)5–12(–20) in corymbiform arrays.

nodding, 6–10+ in racemiform-paniculiform arrays.

hairy (especially on angles).

glabrous.

= 40.