Flora of North America species comparison

1–3+, erect (straight to ± flexuous), glabrate to sparsely hirsute or strigillose, especially distally.

1–5+, ascending to erect, densely puberulent to lanate, especially distally.

thin, margins coarsely, sharply serrate to crenate-serrate or serrulate, ciliate to scabrous, apices acute or acuminate, mucronulate, abaxial faces glabrate to sparsely hirsute, midveins usually densely hirsute, sometimes glabrous, adaxial glabrous or glabrate to scabrellous;

basal usually withering by flowering (sometimes persistent on small plants), long-petiolate (petioles slightly winged, sheathing, ciliate), blades ovate, (24–)40–120(–270) × 15–70 mm, bases usually shallowly cordate, sometimes rounded;

proximal cauline often withering by flowering, winged-petiolate, blades ovate to oblanceolate or lanceolate, (24–)60–150 × (10–)20–60 mm, reduced distally, bases subcordate to cuneate;

distal sessile or sometimes subsessile (petioles widely-winged), blades lance-ovate to linear-lanceolate or linear, 18–75 × (2–)5–25 mm, bases cuneate, sometimes ± clasping, margins serrulate or entire.

thickish, margins entire or shallowly crenate, apices acute to ± obtuse, faces densely lanate-puberulent;

basal withering by flowering, petiolate, blades obovate to elliptic, 30–150 × 10–40 mm, bases cuneate to rounded, margins entire, ciliolate, apices acute, faces densely cinereous to lanate;

proximalmost cauline sometimes withering by flowering, subpetiolate or sessile, blades obovate-lanceolate to elliptic, 50–100 × 10–25(–35) mm, bases cuneate, clasping, ± auriculate, apices usually acute;

distal sessile, blades 20–60(–80) × 9–16(–20) mm, bases rounded to auriculate.

0.2–1.5+ cm, unequal, reduced distally, ± hirsutulous, bracts 0–4, subulate or linear.

densely lanate, bracts 1–8, elliptic, margins ciliolate, apices acute, puberulent.

campanulate, (4–)5–6.5 mm.

campanulate, 6–10 mm.

(12–)14–20;

corollas pale to deep blue or bluish purple, laminae (8.3–)10–15 × 1–2.3 mm.

18–40;

corollas violet, laminae (8–)12–20 × 1–2(–2.5) mm.

14–25(–29);

corollas yellow becoming reddish purple, 4.3–6.4 mm, tubes shorter than funnelform throats, lobes narrowly triangular, 0.5–1.1 mm.

35–80+;

corollas yellow, 6–9 mm, lobes triangular, 0.4–1 mm.

in 4–5 series, narrowly oblong-lanceolate to oblong-oblanceolate or linear-oblanceolate (innermost), ± unequal, bases indurate 1/3–2/3, margins narrowly scarious, erose, hyaline or infrequently purplish, sparsely ciliolate, green zones lanceolate to linear-lanceolate or linear, apices acuminate to long-acuminate, faces glabrous.

in 4–6 series, oblanceolate (outer) to linear (inner), unequal, bases scarious (outer sometimes foliaceous), margins slightly scarious, entire, green zones obovate to elliptic, apices acute, faces densely lanate to cinereous.

[(6–)13–50(–100+)] in open, paniculiform arrays, branches ascending.

in paniculiform, very leafy arrays, branches 4–10(–20) cm.

yellowish white, obovoid, compressed, 1–2 mm, 5–6-nerved, faces glabrate to sparsely strigillose;

pappi white to pinkish, 3–6 mm.

brown, cylindric to obovoid, not compressed, 3.5–4.5 mm, 4–5-nerved, faces sparsely hairy;

pappi tawny, (6–)7–9 mm.

= 48.

= 80.