Flora of North America species comparison

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

1, ascending-erect, softly short villous.

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.

basal and proximal cauline winged-petiolate petioles (petioles 1/2+ leaf length), blades broadly ovate (or subcordate) to elliptic, 50–100(–160) × 30–40 mm, margins shallowly serrate-crenate, apices acute to obtuse, soft short-villous;

mid and distal cauline subpetiolate or sessile, blades ovate to elliptic, 20–40 × 5–15 mm, greatly reduced, becoming narrowly elliptic.

0.5–5 mm, moderately to densely strigose;

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

slender.

campanulate, 4.5–7(–8) mm.

campanulate, 4–5 mm.

1–5;

laminae (2–)2.5–4(–5) × 0.7–2 mm.

usually 7–12;

laminae 3–6 × 1.5–2 mm.

4–8(–11);

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

usually 14–27;

corolla tubes 4 mm, lobes 0.8–1 mm.

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.

in 3–4 series, broadly lanceolate, unequal, glabrate or sparsely short-strigose.

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

50–100, in paniculiform arrays, proximal branches obscurely to evidently recurved-secund.

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

pappi 3–4.5 mm.

1.5–2.5, sparsely strigose;

pappi ± 3 mm (shorter than corollas).

= 18, 36.

= 18.