Flora of North America species comparison

1–5, sparsely to moderately strigoso-puberulent.

1–5+, flexuous, sparsely to moderately hairy in arrays.

basal petioles 3–5 cm, blades oblanceolate or spatulate to ovate or rotund, 2–4 cm (excluding petioles);

cauline (numerous) subsessile or sessile, blades elliptic or lance-elliptic to ovate, mid mostly 25–50(–65) × 10–25 mm, distal much reduced;

branch leaf petioles 1 mm, blades ovate, 5–15 (excluding petioles) × 2–10 mm.

rosettes present at flowering;

basal and proximal cauline tapering to winged petioles, blades ovate, (70–)100–140(–180) × (27–)40–60(–80) mm (petioles 1/4–1/2 total leaf length), margins serrate-serrulate [teeth (14–)21–33(–45)], abaxial faces glabrous or moderately hairy, more densely so on nerves, adaxial glabrous or sparsely hairy;

mid to distal cauline sessile, blades narrowly ovate to lanceolate, 38–90(–150) × 10–30(–55) mm, reduced distally, becoming lanceolate in arrays, bases tapering, margins entire to serrate, apices acuminate to cuspidate, faces glabrous or sparsely hairy, abaxial glabrous or moderately hairy, more densely so along nerves.

linear, 1–3 mm, bracteate.

0.5–5 mm, moderately to densely strigose;

bracteoles 1–3, lanceolate, usually near base of involucres and grading into phyllaries.

narrowly campanulate, 3–5 mm.

campanulate, 4.5–7(–8) mm.

0(–2).

1–5;

laminae (2–)2.5–4(–5) × 0.7–2 mm.

4–8;

corollas 3 mm, lobes 1 mm.

4–8(–11);

corollas 2–3(–4) mm, lobes 1–1.6(–2) mm.

in 3–4 series, lanceolate, strongly unequal, margins ciliate, apices acute, glabrous.

in ca. 3 series, strongly unequal, outermost 1–2 mm, innermost 3.7–4.7(–5.7) mm, linear-oblong, 1-nerved, apices obtuse to acute.

75–200 in open paniculiform arrays, branches divaricate, ascending to recurved, weakly to strongly secund, to 50 cm, secondary branches less than 3 cm.

25–250, in short axillary and terminal racemiform clusters, lateral panicles (2–)7–31(–56) cm.

2.5–3 mm, moderately short-strigose;

pappi 2 mm.

(obconic) 1–2(–3) mm, moderately to densely strigose;

pappi 3–4.5 mm.

= 18.

= 18, 36.