Flora of North America species comparison

glabrous or sparsely tomentose (especially distally).

(sometimes purple-tinged) glabrous.

usually 1 (relatively thin, delicate).

usually 1 (freely branching upward).

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).

equally distributed;

petiolate;

blades ovate to obovate, 2–6 × 0.5–2(–4) cm, bases tapered, margins coarsely lobed or irregularly dentate (mid and distal leaves similar, bases expanded, truncate to cordate, clasping, 1–2 cm across).

0 or 1–5;

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

0 or 1–3+;

corolla laminae 0.1–1 mm (little expanded, barely, if at all, surpassing phyllaries; sometimes laminae 0 and heads perhaps technically disciform).

± 8 or ± 13, 5–6 mm, tips greenish.

± 8 or ± 13, 6–7 mm, tips green.

0 or of 1–3+ lance-deltate bractlets.

of 3–5+ lance-linear bractlets.

4–10+ in open, cymiform arrays.

3–10 in loose, cymiform arrays.

densely hairy.

hairy.

= 40.

= 40.