Flora of North America species comparison

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

1–20+, erect, glabrate proximally or sparsely strigoso-villous, becoming more densely so distal to mid stem.

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 0;

proximal to mid cauline usually withering by flowering, tapering to sessile bases, blades narrowly ovate-lanceolate, 50–190 × 5–30 mm, margins sharply serrate, 3-nerved, apices acuminate, abaxial faces glabrous or more commonly hairy along main nerves, adaxial glabrous or slightly scabrous;

mid to distal similar, 30–50(–120) × 8–12 mm, largest near mid stem, reduced distally, margins usually serrate or serrulate (teeth 3–8), sometimes entire proximal to arrays.

0.5–5 mm, moderately to densely strigose;

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

3–3.4 mm, bracteoles 0–3, linear-triangular.

campanulate, 4.5–7(–8) mm.

narrowly campanulate, 1.7–2.5(–3) mm.

1–5;

laminae (2–)2.5–4(–5) × 0.7–2 mm.

(5–)8–14(–18);

laminae 0.5–1.5 × 0.15–0.3(–0.5) mm.

4–8(–11);

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

(2–)3–6(–8);

corollas 2.2–2.8(–3) mm, lobes 0.4–0.8(–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, strongly unequal, acute to obtuse;

outer lanceolate, inner linear-lanceolate.

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

(70–)150–1300+, secund, in secund pyramidal-paniculiform arrays (obscurely so and club-shaped thyrsiform in small plants or shoots with small arrays), branches divergent and recurved, branches and peduncles hairy.

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

pappi 3–4.5 mm.

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

pappi 1.8–2.2 mm.

= 18, 36.