Flora of North America species comparison

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

1–30+, simple, sparsely to densely puberulent proximally to densely so in 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 winged-petiolate-subpetiolate (poorly differentiated), blades to winged petioles;

blades oblanceolate, largest to 8 cm, usually smaller, gradually attenuate, margins entire, slightly undulate, sparsely to moderately soft-puberulent, somewhat viscid (stipitate-glands very small); mostly withering by flowering, new rosettes sometimes present;

cauline petiolate (petioles 0.5–1 mm), blades (linear) elliptic proximally to (narrowly) lanceolate or ovate distally, largest 50–80 × 15–25 mm, reduced distally and becoming more ovate, 15–20 mm in arrays, margins entire or serrulate.

0.5–2 mm;

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

0.5–5(–2.5) mm, densely short hispid-canescent, sparsely to densely stipitate-glandular, ± viscid;

bracts small, grading into phyllaries.

narrowly campanulate, 3–5 mm.

broadly campanulate, (3.5–)4–5(–5.5) mm.

4–7;

laminae 2–3.5 × 0.2–0.7 mm.

6–10;

laminae ca. 3–5 × 1–2 mm.

4–6;

corollas 3 mm, lobes 1 mm.

10–20;

corollas 3–4 mm, lobes ca. 1 mm.

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

in 2–3 series, unequal, oblong to linear-lanceolate, acute to attenuate, sparsely to moderately strigose, especially distally, sparsely to densely stipitate-glandular, ± viscid.

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

1–140, not secund, in thyrsiform-paniculiform arrays, sometimes compact, nearly as wide as tall, and rounded, sometimes appearing almost rounded corymbiform, proximal branches sometimes much elongate, not secund, spreading to ascending.

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

pappi 3 mm.

1.5–2.5 mm, ± moderately short-strigose;

pappi 3–4 mm.

= 18, 36.

= 18.