Flora of North America species comparison

1–20+, erect, proximally sparsely to moderately strigoso-villous, distally usually moderately to densely so.

usually single, erect (proximally medium to dark brown distally lighter, sometimes cyanotic, usually rounded, shallowly many ribbed), sparsely finely hispido-strigose proximally to densely so in arrays.

basal 0;

proximal cauline sessile, blades narrowly to broadly oblanceolate, 35–75(–100) × (6–)7.5–14(–20) mm, proximal much smaller, tapering to bases, margins subentire or finely serrulate to coarsely, sharply serrate (teeth 0–9 per side), ciliate, 3-nerved, sometimes obscurely so, apices acute, abaxial faces glabrate to sparsely short-strigose, adaxial glabrous;

mid to distal cauline sessile, blades oblanceolate, becoming lanceolate distally, 20–60 × 4–8(–11) mm, largest near mid stem, somewhat to much reduced distally, margins entire or finely serrulate, rarely serrate (teeth 1–8 per side), usually becoming entire to sparsely serrulate distally, ciliate, apices acute, faces glabrous or sparsely strigoso-villous, more so along abaxial nerves.

rosettes often present at flowering, early leaves smaller;

basal and proximal cauline gradually to abruptly tapering to winged petioles, blades elliptic to ovate-elliptic, 90–210 (including petioles) × 40–70 mm, margins serrate-serrulate, ciliate, apices obtuse to broadly acute, faces abaxially glabrous or sparsely strigose, adaxially glabrous or sparsely strigose, mostly on nerves;

mid to distal cauline sessile, blades lanceolate or elliptic, 20–650 × 10–30 mm, gradually reduced distally, becoming entire, apices acute to acuminate.

2–7 mm, sparsely to moderately short strigoso-villous;

bracteoles 1–3, linear, rarely minutely stipitate-glandular.

0.5–11 mm, densely short hispido-strigose;

bracteoles 5–10+, grading into phyllaries, sparsely short hispido-strigose and sparsely to moderately glandular.

narrowly campanulate, 2.5–3.5(–4) mm.

campanulate, 5–8 mm.

(8–)11–15(–17);

laminae 1–2.5 × 0.1–0.4(–0.7) mm.

4–8;

laminae 5–7 × 1–2 mm.

(3–)5–11(–16);

corollas 2.6–3.7(–4) mm, lobes 0.5–1.2 mm.

10–18;

corollas 5–7 mm, lobes 1.5–2.2 mm.

in 3–4 series, strongly unequal, margins sparsely long ciliate, acute, faces glabrous, rarely sparsely minutely stipitate-glandular;

outer lanceolate, inner linear-lanceolate.

in 4–5 series, appressed, strongly unequal, outer ovate, acute, mid and inner broadly oblong (appressed), obtuse or rounded, sparsely strigose and moderately finely stipitate-glandular.

12–500+, sometimes secund, in short to long, thyrsiform or narrowly secund-pyramidal paniculiform arrays, usually congested, club-shaped to rarely wand-shaped, (2.5–) 10–20 × (2–)4–8(–10) cm, branches usually ascending or sometimes arching spreading.

50–100+ (1–10 per branch, more on much elongated proximal branches), in elongate to thyrsiform-paniculiform arrays 7–22 × 3–6 cm;

branches ascending, racemiform or paniculiform, not secund, longest to 1/2 length of arrays.

(narrowly obconic) 1–1.5 mm, sparsely to moderately strigose;

pappi 2.5–3.3 mm.

(fusiform to obconic) 2.5–3 mm, moderately long-strigose;

pappi 4–6 mm (some clavate).

= 18, 36.