Flora of North America species comparison

1–10, ascending to erect, uniformly finely strigillose-villous distal to mid.

1–3+, erect, flexuous in proximal arrays, moderately to densely villous.

basal cauline nearly always withering well before flowering, linear-oblanceolate, smaller than proximal mid cauline, serrate;

proximal persisting, sometimes brown-black after senescence, often twisted;

proximal to distal numerous (100+ on tall stems), crowded, sessile, blades (bright green) linear to linear-lanceolate, 20–70 × 2–7(–10) mm, margins remotely serrulate (proximal) to entire or with 1–2 minute serrations (distal), obscurely 3-nerved, one or both faces glabrous or finely strigillose.

basal withering by flowering;

basal and proximal cauline abruptly tapering to winged, villous petioles (petioles ± 1/2 or less total leaf length), blades broadly ovate to spatulate, 46–80(–90) × 23–47(–55) mm, margins serrate [teeth 6–12(–15)], abaxial faces moderately villous, more so along nerves, adaxial sparsely to moderately villoso-strigose;

distal cauline petiolate, similar to proximal or more elliptic, 27–45 × 13–20 mm, margins entire to slightly serrate.

1–4 mm, finely strigilloso-villous;

bracteoles 0–2, linear, grading into phyllaries.

3–5 mm, sparsely strigose;

bracteoles 1–3 scattered, ovate.

narrowly campanulate, 2.5–3.5 mm.

campanulate, 4.3–6.5(–7) mm.

2–8;

laminae 1–2 × 0.25–0.5 mm.

3–5;

laminae 2.4–4 × 1–1.5 mm.

2–4(–6);

corollas 2.3–3.5 mm, lobes 0.4–1 mm.

5–8;

corollas 2.2–2.5 mm, lobes ca. 1–2 mm.

in 3–4 series, strongly unequal;

outer ovate, acute, inner oblong, obtuse to rounded.

in ca. 3 series, unequal, outer ovate, 1–1.5 mm, obtuse to acute, inner oblong, 1-nerved.

100–300+, in short to elongate, pyramidal paniculiform arrays, branches recurved, secund.

10–30, in short axillary and terminal racemiform/paniculiform clusters.

(narrowly obconic) 1 mm, strigillose;

pappi 2–3 mm.

(obconic) 1–2 mm, moderately hairy;

pappi 2.3–2.8 mm.

= 18.

= 36.