Flora of North America species comparison

usually 1, ascending to erect, uniformly short villoso-strigose, occasionally glabrate proximally.

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

basal and proximal cauline short-petiolate, blades broadly ovate or elliptic-ovate, margins serrate, ± 3-nerved and pinnately nerved, abaxial faces (at least) evenly short villoso-strigose;

mid and distal cauline like proximal, 20–70 × 10–40 mm (1.3–2 times as long as wide), usually only those near arrays reduced and 1-nerved.

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.

1–6 mm;

bracteoles ovate, minute, grading into phyllaries.

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

campanulate, 3–4.5 mm.

campanulate, 4.5–6(–7) mm.

3–7;

laminae 1.5–2 × 0.5–1 mm.

4–6;

laminae 2.2–3.5 × 0.8–1.7 mm.

4–7;

corollas (abruptly ampliate) 3–3.5 mm, lobes ca. 1 mm.

5–7(–11);

corollas 4–5.6 mm, lobes 1.6–2.5 mm.

in 3 series, strongly unequal, obtuse or rounded;

mid broadly oblong, inner narrowly so.

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

30–200+, apparently sometimes drooping, in open leafy, secund pyramidal, paniculiform arrays, branches recurved, leafy-bracteate, secund, proximalmost branch sometimes separated by several nodes from next.

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 mm (4–8 translucent ribs), moderately short-strigose;

pappi 2–2.5 mm.

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

pappi 3–4.7 mm.

= 18.

= 90.