Flora of North America species comparison

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

1–10+, erect, proximally glabrous, increasingly puberulent distally into arrays.

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 0;

mid and distal cauline numerous (sometime 100+ per stem), crowded, sessile or subsessile;

blades linear-elliptic, mostly 50–120 × 6–12 mm, tapering at both ends, margins remotely serrulate or subentire, 3-nerved, faces glabrous or sometimes puberulent abaxially on midnerves.

1–4 mm, finely strigilloso-villous;

bracteoles 0–2, linear, grading into phyllaries.

1–3 mm, sparsely strigose;

bracteoles linear, 1–3.

narrowly campanulate, 2.5–3.5 mm.

narrowly campanulate, 2–3 mm.

2–8;

laminae 1–2 × 0.25–0.5 mm.

mostly 7–11, 1–2 × 0.1–0.2 mm.

2–4(–6);

corollas 2.3–3.5 mm, lobes 0.4–1 mm.

2–7;

corollas 2–3 mm, lobes 0.4–0.6 mm.

in 3–4 series, strongly unequal;

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

in 3–4 series, linear-lanceolate, strongly unequal, midribs raised, enlarged apically, apices acute to usually obtuse or rounded, apically ciliate.

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

80–900+, in paniculiform arrays, branches recurved, secund.

(narrowly obconic) 1 mm, strigillose;

pappi 2–3 mm.

(narrowly obconic) 1–1.5 mm, sparsely strigillose;

pappi 2–2.5 mm.

= 18.

= 18, 36.