Flora of North America species comparison

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

1–5+, ascending to erect, glabrous or moderately hairy 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 present at flowering, often in large numbers;

basal and proximal cauline tapering to long-winged petioles, blades oblanceolate to elongate-elliptic, 140–300 (including petioles) × 33–63 mm, gradually reduced distally, somewhat fleshy-rubbery (fresh), margins serrate (teeth 8–18), apices acuminate, abaxial faces glabrous, adaxial glabrous or sparsely strigose;

mid to distal cauline sessile, blades narrowly lanceolate, 35–72 × 9–16 mm, gradually reduced into arrays, tapering to bases, margins entire to slightly serrate, apices acuminate, faces glabrous or sparsely hairy.

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

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

5–12 mm, glabrate to sparsely strigose;

bracteoles 0(–1).

narrowly campanulate, 2.5–3.5(–4) mm.

campanulate, 10–11 mm.

(8–)11–15(–17);

laminae 1–2.5 × 0.1–0.4(–0.7) mm.

6–13;

laminae 3.3–5 × (1.5–)2–3(–3.5) mm.

(3–)5–11(–16);

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

12–29;

corollas 3.7–5.1 mm, lobes 1.5–2.3 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 3–4 series, unequal, outermost ovate, 2.3–3.6 mm, 1-nerved, apices obtuse to acute, innermost linear-oblong, 1–3-nerved (on at least some involucres), apices obtuse to blunt.

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.

20–230 (1–10 per branch), in leafy, short, axillary and terminal, racemo-paniculiform clusters 8–41(–47) cm.

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

pappi 2.5–3.3 mm.

(obconic) 2–2.6 mm, glabrous or sparsely strigose;

pappi 4.8–5.7 mm.

= 18, 36.

= 108, 126.