Flora of North America species comparison

1–5+, ascending to erect, glabrous or sparsely puberulent.

1–8+, erect (purplish to brown, slender), villous, more densely so distally, distally moderately stipitate-glandular.

thin, margins entire or sometimes serrate, apices acute to obtuse, faces usually glabrous, sometimes sparsely hairy;

basal usually persistent, petiolate to subpetiolate, blades broadly elliptic to obovate, 30–200 × 8–25(–30) mm, bases attenuate, margins entire or sometimes serrate, apices acute to obtuse;

proximal cauline sessile or subpetiolate, blades elliptic to obovate, 35–120 × 8–25 mm, bases attenuate or cuneate to rounded, sometimes ± clasping, apices acute;

distal sessile, reduced distally, bases cuneate, apices acute.

(yellowish to dark green.

sparsely hairy, bracts 0–3, lanceolate.

± densely short-villous, ± densely stipitate-glandular, bracts 1–3, foliaceous, reduced.

campanulate, 6–16(–20) mm.

campanulate, 7–10 mm.

15–60;

corollas violet to purple, laminae 8–18(–20) × 1–2 mm.

(8–)15–30;

corollas purple to blue, laminae 5–11 × 0.5–2 mm.

50–150;

corollas yellow, 4–7 mm, lobes triangular, 0.4–1 mm.

16–38;

corollas yellow becoming brown, 4–6.5 mm, lobes triangular, 0.4–0.8 mm.

in 4–6 series, oblanceolate or oblong (outer) to lanceolate or linear (inner), subequal or unequal (outer exceeding inner), bases outer foliaceous, inner indurate, margins entire, green zones elliptic to lanceolate, apices acute to rounded, faces glabrous or puberulent.

in 3–4(–5) series, linear-lanceolate, subequal, bases scarious, margins hyaline or purplish, scarious, erose, ciliate or short-stipitate-glandular, green zones herbaceous at least distally, often purplish to purple, apices long-acuminate, spreading to reflexed, faces ± densely villous (outer more so), ± densely stipitate-glandular.

borne singly or in paniculiform arrays, branches ascending, up to 25 cm.

usually borne singly, sometimes in open, corymbo-paniculiform arrays, branches ascending.

brown, cylindric to obovoid, not compressed, 2.5–4 mm, 3–4-nerved, faces hairy;

pappi white to tawny, 5–8 mm.

brown (sometimes purplish, nerves stramineous), narrowly obovoid, ± compressed, ca. 3 mm, 7–10-nerved, faces sparsely to moderately sericeo-strigose;

pappi sordid (barb tips sometimes purplish-tinged), 3.5–4.8 mm.

purplish, often prominent) thin, reduced distally, margins entire;

basal withering by flowering, winged-petiolate to subpetiolate (petioles ± sheathing), blades narrowly oblanceolate, 8–15 × 1–3 mm, bases attenuate, margins scabrous, apices obtuse to acute, faces glabrous or glabrate;

proximal cauline often withering by flowering, sessile or subsessile, blades linear-oblanceolate, 20–70 × 1–4 mm, bases ± clasping, margins ciliate, apices acute, abaxial faces glabrous or midnerve ± sparsely villous, adaxial glabrous or sparsely villous, midnerves ± villous;

distal sessile, blades linear-lanceolate, 10–30 × 1–2.5 mm, bases ± subclasping, ± rounded to subauriculate, margins sometimes stipitate-glandular, apices acute, mucronate or white-spinulose, faces glabrous or sparsely villous, short-stipitate-glandular.

= 10.