Flora of North America species comparison

glabrous or sparsely tomentose (especially distally).

(sometimes purplish-tinged) floccose-tomentose, unevenly glabrescent.

usually 1 (relatively thin, delicate).

single or loosely clustered (erect or arching).

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).

mostly cauline;

petiolate (petioles about equaling blades);

blades lanceolate or oblanceolate to ovate, (2–)4–8+ × 1.5–3 cm, bases tapered, margins denticulate (distal leaves smaller, lanceolate or linear-lanceolate, bractlike).

0 or 1–5;

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

± 13;

corolla laminae ± 15 mm.

± 8 or ± 13, 5–6 mm, tips greenish.

usually ± 21, sometimes ± 13, (8–)10–15 mm, tips usually greenish (often sparsely hairy).

0 or of 1–3+ lance-deltate bractlets.

of 4–8 lanceolate to lance-linear bractlets (lengths mostly less than 1/2 phyllaries).

4–10+ in open, cymiform arrays.

nodding, 1(–2).

densely hairy.

glabrous.

= 40.

= 40.