Flora of North America species comparison

5+, erect to scandent-sprawling (brown, branched from middle), moderately to densely finely hairy.

1–3+, erect (straight, slender, often reddish to slightly glaucous proximally), glabrous.

(yellowish green) thick, firm, margins entire;

basal early deciduous, sessile or subpetiolate, blades (3-nerved) oblanceolate to obovate, 10–43 × 7–15 mm, bases cuneate, margins scabrous, apices acute to obtuse, faces sparsely finely scabrous;

proximal cauline sessile, blades narrowly obovate to oblanceolate, 20–35 × 5–13 mm, bases auriculate-clasping, margins finely scabrous, apices acute to obtuse, faces finely scabrous, shiny;

distal sessile, blades lanceolate to linear, 3–10 × 1–4 mm, gradually reduced to bracts distally, bases subclasping and adnate to stem for 1/2+ length, apices narrowly acute, white-spinulose, faces finely scabrous, viscid, minutely stipitate-glandular.

stiff, margins entire to sparsely subserrulate, revolute, scabrellous, apices mucronulate, sometimes with callous point, faces glabrous, abaxial midveins sometimes sparsely strigillose;

basal withering by flowering, subpetiolate to petiolate, petioles winged, base dilated, sheathing, eciliate, blades linear-oblanceolate to ovate or suborbiculate, 20–150 × 5–60 mm, bases attenuate, margins shallowly serrate or entire, apices obtuse to rounded;

proximal cauline withering by flowering, sessile or subpetiolate, petioles widely winged, bases strongly clasping, blades linear-lanceolate to linear, 15–90 × 2–12 mm, bases attenuate to cuneate or subauriculate, ± clasping, apices obtuse to acute;

distal sessile, blades linear-lanceolate (sometimes lanceolate) to linear, (40–)60–150 × 2–6(–8) mm, ± reduced distally, bases subauriculate, subclasping, margins entire or sometimes remotely serrulate, apices acute.

densely short-strigose, glandular, bracts linear, adnate, densely short-strigose.

0.5–5 cm, glabrous, bracts 1–3, remote, linear-lanceolate to linear, reduced distally, not grading into phyllaries (sometimes subtending heads).

campanulate, 4–6.5 mm.

cylindro-campanulate, (4–)5–8 mm.

10–20;

corollas light to dark lavender, laminae 5–8 × 0.5–1.5 mm.

(15–)25–35(–41);

corollas white to often pale rose, pale purple or lavender, laminae (7–)10–15(–20) × 1.1–1.5 mm.

12–25;

corollas yellow, 3.7–7 mm, throats narrowly funnelform, lobes triangular, 0.4–0.8 mm.

(15–)25–30(–40);

corollas cream or pale yellow becoming pink or brown purple, 3.7–6.6 mm, tubes shorter than funnelform throats, lobes triangular, 0.5–1 mm.

in 4–5 series, oblong to oblanceolate, strongly unequal, bases (tan) ± indurate, margins hyaline, finely scabrous, green zones lenticular, in distal 1/4–2/5, apices obtuse, mucronate to finely subspinulose, faces scabrellous-puberulent, stipitate-glandular.

in 4–5 series, usually appressed, rarely outer recurved, lanceolate or oblong-lanceolate (outer) to linear (innermost) ± unequal to sometimes subequal, bases indurate 1/3–1/2 (sometimes not indurate), margins scarious, erose, hyaline or tinged with reddish purple, sparsely ciliolate, green zones lanceolate to linear-lanceolate, apices acute to acuminate, mucronate to apiculate, often purple or reddish purple (particularly inner), faces glabrous.

in ± open, paniculiform arrays, branches initially patent then ascending or divaricate.

borne singly or in open, often lax, racemiform or paniculiform arrays, branches ascending, sparsely leafy.

tan to brown, obovoid, not compressed, 2–2.5 mm, 6–10-nerved (faint), faces sparsely strigose;

pappi tan, 3.75–8 mm.

yellowish tan or purple to brownish with purple streaks or grayish tan (nerves stramineous), obovoid, ± compressed, 0.6–2 mm, 3–5-nerved, faces sparsely strigillose;

pappi white, 2.7–6.4 mm.

= 20.

= 16, 32, 48, 64.