Flora of North America species comparison

usually 1–3, ascending to erect, scabrous to loosely puberulent.

1–5+, erect, glabrous proximal to arrays.

basal and proximal usually withering by flowering, tapering to long-winged petioles, blades oblanceolate, 30–100 × 7–20(–30) mm, margins serrate or crenate, mid usually largest, apices acute to obtuse, acuminate, faces scabrous;

mid and distal cauline subsessile (1 mm) or sessile, blades (sometimes ± shiny) elliptic to oblanceolate, 10–50 × 5–15(–25) mm, greatly reduced distally, grading into bracts, firm, bases convex-cuneate to rounded, margins finely serrate, often 3-nerved, nerves usually distinct abaxially, faces distinctly scabrous.

basal and proximal cauline tapering quickly to long, winged ciliate-margined petioles, blades ovate, 50–200 × 20–100 mm, margins serrate;

mid to distal cauline sessile, blades oblanceolate, 30–100 × 8–35 mm, reduced distally and becoming lanceolate-ovate, margins entire, abaxially sparsely strigose along nerves.

0.5–2 mm;

bracteoles 1–5, linear-lanceolate to ovate, minute, grading into phyllaries distally.

8–10 mm.

narrowly campanulate, 3–5 mm.

5–9 mm.

4–7;

laminae 2–3.5 × 0.2–0.7 mm.

10–16;

laminae 4–6.5 × 0.4–0.6 mm.

4–6;

corollas 3 mm, lobes 1 mm.

15–30;

corollas 5–5.6 mm, lobes 0.5–1.2 mm.

in 3–4 series, unequal, oblong, midnerves swollen distally, obtuse or acute to slightly acuminate.

(20–26) in 4–6 series, recurved, unequal, conspicuously spreading, lanceolate, margins ciliate, apices acute to obtuse, finely strigose.

20–260, in paniculiform arrays, narrowly to broadly secund, pyramidal, branches recurved, secund.

20–200, not secund, in narrow, elongate arrays of axillary and terminal racemiform clusters, branches and peduncles hairy, leafy-bracteate proximally.

1.5–2.5 mm, sparsely to moderately short-strigose;

pappi 3 mm.

(obconic) 1.5–2 mm, glabrous;

pappi 3–4.3 mm.

= 18, 36.

= 18.