Flora of North America species comparison

closely, unevenly lanate-floccose, glabrescent.

(sometimes purple-tinged) floccose-tomentose (persistently on abaxial faces of leaves, glabrescent elsewhere).

usually multiple (strict or nearly so, arching-erect).

single or loosely clustered.

(often recurved and thickish-turgid) concentrated distally on stems;

sessile or obscurely petiolate;

blades narrowly linear to filiform (2–7 cm × 1 mm), bases ± linear, margins entire.

± evenly distributed;

petiolate;

blades oblanceolate to ovate, (1–)2–6 × 1–2.5 cm, bases tapered, margins dentate or incised to subpinnatifid (distal leaves bractlike).

usually ± 8, rarely 0;

corolla laminae 5–10 mm.

usually ± 13, sometimes fewer or 0;

corolla laminae 8–12 mm.

± 13, 5–8 mm, tips green or minutely black.

± 13 or ± 21, 7–10 mm, tips green.

0 or of 3–5 bractlets (lengths less than 1/2 phyllaries).

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

3–10 in corymbiform arrays (involucres weakly campanulate).

1(–5).

glabrous.

glabrous.

= 40.