Flora of North America species comparison

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

1 or in clones 2–5+, proximally glabrous or short-strigose 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 cauline tapering to long, winged petioles (to 100 mm), blades elliptic to obovate or ovate, 80–200 (including petioles) × 25–80 mm, bases broadly to narrowly attenuate, margins serrate, apices acute or obtuse, faces glabrous or sparsely scabroso-strigose;

mid to distal cauline sessile, blades linear-elliptic to elliptic-oblanceolate, 20–60 × 4–20 mm, much reduced distally and usually ascending to appressed, bases tapered, margins entire to sparsely shallowly serrate, ciliate, apices acute.

0.5–2 mm;

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

1–4 mm short-strigose, bracteolate.

narrowly campanulate, 3–5 mm.

campanulate, 4–5(–5.8) mm.

4–7;

laminae 2–3.5 × 0.2–0.7 mm.

4–6;

laminae ± 2 × 1 mm.

4–6;

corollas 3 mm, lobes 1 mm.

5–7;

corollas 4–5 mm, lobes 1–1.5 mm.

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

in 3–4 series, ascending, lanceolate to oblong, strongly unequal, margins finely fimbriate-ciliate distally, midnerves swollen apically, apices broadly acute to obtuse, faces glabrous.

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

50–140, secund on longer branches, less so on apical branches, in open paniculiform arrays, proximal branches ascending and bracteate, apical portions arching.

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

pappi 3 mm.

(greenish turning golden brown, obconic) 2–3 mm (ribs 4–7), short strigose, more so on distal 1/2;

pappi 3–4 mm.

= 18, 36.

= 18, 36.