Flora of North America species comparison

glabrous or sparsely tomentose (especially distally).

lanate-arachnose or tomentose, unevenly glabrescent.

usually 1 (relatively thin, delicate).

1(–2).

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).

(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).

0 or 1–5;

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

± 13;

corolla laminae 5–10 mm.

± 8 or ± 13, 5–6 mm, tips greenish.

(± 13) ± 21, 5–7 mm, tips green.

0 or of 1–3+ lance-deltate bractlets.

of 2–5+ bractlets (largest to 3 mm).

4–10+ in open, cymiform arrays.

(2–)5–12(–20) in corymbiform arrays.

densely hairy.

hairy (especially on angles).

= 40.

= 40.