Flora of North America species comparison

1–10+, erect, glabrous.

1, erect, glabrous proximal to (and usually into proximal portions of) arrays.

basal and proximal cauline usually withering by flowering (other rosettes may be present), tapering to long, winged petioles, blades often recurved, linear- lanceolate or -oblanceolate, 100–240 × 8–16 mm, folded along midrib (V-shaped in cross section), bases usually with (2–)3–8 prominent lateral nerves, apices acute to obtuse, faces glabrous;

mid to distal cauline sessile, blades recurved, linear-lanceolate, 50–70 × 8–11 mm, reduced distally, folded, bases with prominent lateral nerves.

basal and proximal present at flowering, abruptly tapering to winged petioles, blades ovate, 100–200 × 80–120 mm, broadly tapering to truncate or slightly cordate (rarely) bases, margins singly or doubly serrate (teeth 1–3(–6) mm);

mid to distal cauline subsessile to sessile, blades lanceolate, 130–200 × 45–85 mm, progressively reduced distally, margins serrate (teeth 1–3 mm), abaxially glabrous, adaxially scabrous-hispidulous at least along margins.

2.8–4 mm, moderately short-hispido-strigose, lanceolate bracteoles 0–1.

2–5 mm (4–13 mm on South Carolina plants).

narrowly campanulate, 4.5–6 mm.

campanulate, 4.5–6(–7) mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

4–6;

laminae 2.2–3.5 × 0.8–1.7 mm.

6–10;

corollas 4.5–5.2 mm, lobes 0.7–1.8 mm.

5–7(–11);

corollas 4–5.6 mm, lobes 1.6–2.5 mm.

(14–18) in 3–4 series, unequal, obtuse, broad, striations weak, obtuse to rounded, glabrous.

(10–18) in 4–6 series, ascending, lanceolate, broadly acute to obtuse, glabrous except for fimbriate-ciliate margins towards tip.

30–450 in corymbiform to somewhat paniculiform with rounded corymbiform branches (robust plants) arrays, branches and peduncles strigillose.

40–70, inconspicuously secund on longer branches, appearing fasciculate on shorter branches, borne in variable arrays, mostly narrow elongate and secund, consisting of axillary and terminal racemiform branches, or wider and compound, consisting of multiple array branches, proximally leafy-bracted, branches and peduncles (2.5–)4(–13) cm, hairy.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

2.5–3.2 mm, short hairy at least on distal half;

pappi 3–4.7 mm.

= 18.

= 90.