Flora of North America species comparison

glabrous or sparsely tomentose (especially distally).

(± turgid or subsucculent) unevenly villous-tomentose, glabrescent.

usually 1 (relatively thin, delicate).

usually single, rarely 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).

progressively reduced distally (basal usually withering before flowering);

petiolate (petioles winged);

blades oblanceolate to spatulate, 4–7 × 1.5–3 cm, bases tapered, margins incised (distal leaves sessile, bractlike).

0 or 1–5;

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

± 8 (± 13?);

corolla laminae 5–6 mm.

± 8 or ± 13, 5–6 mm, tips greenish.

± 13, 6–7 mm, tips green.

0 or of 1–3+ lance-deltate bractlets.

of 1–5+ linear to subulate bractlets (to 4 mm).

4–10+ in open, cymiform arrays.

6–10(–20) in cymiform arrays.

densely hairy.

usually hairy (especially on angles), sometimes glabrous.

= 40.

= 40.