Flora of North America species comparison

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

arachno-tomentose to sericeous-lanate (especially on abaxial faces of phyllaries), unevenly glabrescent.

single or loosely clustered (erect or arching).

single (turgid).

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).

evenly distributed (proximal withering before flowering);

subsessile or petiolate;

blades obovate to oblanceolate, 5–15(–25) × 2–6(–10) cm, bases tapered, margins serrate-dentate to denticulate or subentire (distal leaves slightly smaller).

± 13;

corolla laminae ± 15 mm.

usually ± 21, rarely 0;

corolla laminae 20–25 mm.

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

± 21, 8–15 mm (sometimes purplish or pinkish-tinged), tips greenish.

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

of 6–10 linear bractlets (longest nearly equaling phyllaries).

nodding, 1(–2).

1–5(–15+) in corymbiform arrays (involucres notably large, 20–40 mm diam.).

glabrous.

glabrous.

= 40.

= 40.