Flora of North America species comparison

glabrous or sparsely tomentose (especially distally).

glabrous (or with hairs on peduncles).

usually 1 (relatively thin, delicate).

single (often purplish-tinged).

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 basal;

petiolate (petioles ± winged, lengths 1–3+ blades);

blades broadly ovate to ovate-orbiculate, (1.5–)2.5–4.5(–6) × 1.5–4(–5) cm, bases truncate or tapered, margins weakly dentate or repand-denticulate to subentire (cauline leaves smaller, bractlike).

0 or 1–5;

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

± 13+;

corolla laminae 10–14 mm.

± 8 or ± 13, 5–6 mm, tips greenish.

± 21, (8–)10–16 mm, tips green.

0 or of 1–3+ lance-deltate bractlets.

of 3–5+ lanceolate to lance-linear bractlets (lengths 1/2–2/3 phyllaries).

4–10+ in open, cymiform arrays.

nodding, 1(–2).

densely hairy.

glabrous.

= 40.