Flora of North America species comparison

1, erect (± flexuous, often reddish), glabrous, hairy in lines distally.

1–10+, ascending to erect or decumbent, light to dark brown, proximally glabrous, distally hispiduloso-hirsute or hirtellous, stipitate-glandular.

stiff, margins sparsely serrulate or entire, ± revolute, scabrous, apices acute to acuminate, mucronulate, faces glabrous, sometimes midveins hairy;

basal withering by flowering, long-petiolate, petioles narrowly winged, bases sheathing, blades lanceolate, ca. 20 × 3–5 mm, slightly attenuate to narrowly cuneate;

proximal cauline withering by flowering, sessile or subpetiolate, blades linear-lanceolate to -oblanceolate, 100–200 × 4–8 mm, bases cuneate to attenuate, clasping;

distal sessile, blades linear-lanceolate to linear, 10–110 × 1–7 mm, progressively reduced distally, bases cuneate to rounded, slightly clasping or not, margins entire.

(yellowish to dark green) thin, margins entire;

basal sometimes persistent, sessile, blades (3-nerved) oblanceolate to spatulate, 20–50(–70) × 5–15 mm, margins entire (remotely serrate), coarsely ciliate, apices rounded, short-mucronate, faces usually hirsute, rarely glabrous, often also stipitate-glandular;

proximal cauline sessile (often with clusters of smaller leaves in axils), blades oblong or linear-lanceolate, (15–)30–100 × 5–15(–20) mm, bases rounded or slightly clasping, margins scabrellous, apices acute to obtuse, spinulose-mucronate, abaxial faces scabrous, often stipitate-glandular, adaxial hirsute;

distal sessile, blades lanceolate to oblong, 20–80 × 2–10(–20) mm, greatly reduced distally, bases cuneate to subclasping, margins ciliate, stipitate-glandular, apices acute to obtuse, white-mucronate, faces moderately strigose, moderately to densely stipitate-glandular.

glabrous or ± densely pilose in lines, bracts 1–4, linear, sometimes inrolled distally, clasping, ciliate, distal 1–2 often subtending and surpassing involucres.

0.5–5 cm, hispid, stipitate-glandular, bracts dense, spreading or squarrose (rarely ascending), linear to narrowly oblong, 3–8 mm, grading into phyllaries, spinulose, short-strigose.

campanulate, 5–8.5 mm.

campanulate, (5–)7–9 mm.

20–35;

corollas dark blue-violet, seldom white, laminae 8–13 × 1–1.5 mm.

(10–)25–35;

corollas light to dark rose-purple, lavender to deep purple, laminae 9–13(–15) × 1–2 mm.

(18–)23–40;

corollas yellow, 4–6.5 mm, tubes shorter than funnelform throats, lobes lanceolate, 0.8–1 mm.

(25–)30–40(–50);

corollas yellow turning brown or reddish purple, 4.5–5.5(–6) mm, tubes 1/2 the funnelform to nearly tubular throats, lobes triangular, 0.4–0.7 mm.

in 3–4 series, oblong-lanceolate, subequal, bases indurate 1/3–3/4, margins scarious, erose, hyaline, ciliate proximally, sparsely ciliolate distally, green zones lanceolate to linear, sometimes outer ± foliaceous, apices acuminate to long-acuminate, often foliaceous, mucronate to apiculate, faces glabrous, eglandular.

in 4–5(–6) series, outer oblanceolate, mid linear-lanceolate, inner linear, usually unequal, sometimes subequal, bases ± indurate, margins hyaline, scarious, erose, ciliate or ciliolate and/or stipitate-glandular, green zones often broadly foliaceous (outer), green in distal 1/3–1/2 (mid), apices spreading to reflexed (outer), acute, mid long-acuminate, faces moderately hairy, stipitate-glandular.

in elongate, open, narrow, paniculiform or racemiform arrays, branches ascending, short, leafy, branch leaves smaller and reduced distally (heads 1–3 per branch).

in ample, corymbiform to diffusely paniculiform arrays, branches initially patent, then ascending (often from proximal nodes).

tan, obovoid, compressed, ca. 2.2–2.4 mm, 5–6-nerved, faces sparsely strigillose;

pappi pinkish, 7–8 mm.

dull purple or brown (nerves stramineous), obovoid, slightly falcate, not compressed, 2–2.5 mm, 7–10-nerved, faces sparsely strigillose or sericeous;

pappi tawny (barb tips sometimes rose-tinged), 3.5–6 mm.

= 64, 80.

= 10, 20.