Flora of North America species comparison

1–3+, erect (straight), glabrous or glabrate.

5–10+, ascending to erect (brown), glabrous or sparsely strigose distally.

thin, margins often ± revolute, scabrous, apices mucronate to mucronulate, faces glabrous or abaxial minutely pilosulous, cauline with clusters of smaller leaves in most axils;

basal withering by flowering (new vernal rosettes often present), petiolate (petioles narrowly winged, sheathing, strigoso-ciliate), blades spatulate to oblanceolate, 5–40 × 5–15 mm, bases attenuate or cuneate to rounded, margins crenate-serrate, apices obtuse to acuminate;

proximal cauline withering by flowering, petiolate or subpetiolate (proximalmost) or sessile (petioles winged, sparsely long strigoso-ciliate), blades elliptic or elliptic-lanceolate to lanceolate or linear-lanceolate, 20–70 × 3–20 mm, progressively reduced distally, bases clasping, margins becoming short-ciliate distally;

distal (ascending or spreading) usually sessile, sometimes subpetiolate, blades linear-lanceolate to linear, 5–60+ × 1–8 mm, notably unequal in size, reduced distally, abruptly so on branches, bases cuneate to attenuate, margins serrulate or entire.

(grayish green) firm, margins entire;

basal withering by flowering, sessile, blades (1–3 nerved) elliptic-lanceolate, 20–40 × 10–20 mm, bases attenuate, margins usually entire, rarely remotely serrate, piloso-ciliate, apices acute to obtuse, faces piloso-scabrous;

proximal cauline withering by flowering, sessile, blades oblanceolate, 20–30 × 5–13 mm, reduced distally, bases rounded, subclasping, margins entire, scrabrous, apices acute to obtuse, cuspidate-mucronate, faces glabrous or moderately strigose or ± scabrous;

distal sessile, blades oblong-lanceolate, 15–25 × 4–6 mm, bases cuneate, margins entire, apices acute, white-spinulose, faces glabrate to moderately strigose or ± scabrous.

slender, 0.2–3+ cm or subsessile, hairy in lines, bracts 5–15, linear-elliptic to acicular, 1–2 mm, glabrous, grading into phyllaries.

glabrous or sparsely strigose, bracts oblong-lanceolate, grading into phyllaries.

cylindric, (2.5–)3.5–4.5(–5.5) mm.

narrowly campanulate, 6–11 mm.

(12–)16–20;

corollas usually white, rarely pink, laminae 5–8 × 0.5–1.2 mm.

13–15(–36);

corollas rose-purple, laminae 8–13 × 1–2 mm.

10–20(–25);

corollas cream or pale yellow becoming pink or red, (2.5–)3–4.5 mm, tubes shorter than narrowly funnelform throats, lobes recurved to erect, lanceolate, 0.5–1 mm.

16–34(–48);

corollas pink turning purple, 4.5–7.5 mm, tubes shorter than narrowly funnelform throats (sometimes thinly puberulent), lobes triangular, 8–13 mm.

in 4–6 series, appressed or outer ± spreading, oblong-lanceolate to linear (innermost) , unequal, bases indurate 1/4–1/2, margins narrowly scarious, hyaline, ciliolate, green zones oblanceolate to linear-oblanceolate, apices acute to acuminate, mucronate, sometimes lightly purple-tinged, faces glabrous.

in 3–4 series, outer broadly lanceolate, flaring distally, inner linear-lanceolate, subequal, outer foliceous, bases (tan) ± indurate, margins long-piloso-ciliate, green zones foliaceous (outer), apices sometimes purplish, acute (outer) to acuminate (inner), faces glabrous or sparsely short-pilose.

in diffuse, ± pyramidal, paniculiform arrays, branches ± lax, spreading horizontally or arching, racemiform, subtended by patent to reflexed branch leaves, often crowded but not (or barely) secund.

in open, paniculiform arrays (1–5+ per branch).

gray to tan, obovoid, ± compressed, 1–1.8 mm, 4–5-nerved (faint), faces sparsely strigillose or sericeus;

pappi white, 2.5–3.5 mm.

tan to light brown, obovoid, not compressed, ± 3 mm, 5–8-nerved, faces glabrous;

pappi tan, 3.5–6 mm.

= 16.

= 10, 20.