Flora of North America species comparison

1–5+, erect, straight (stout, brittle), glabrous or sparsely hirtellous in lines.

1–6+, decumbent to erect (straight), glabrous.

(paler green or bluish green abaxially) firm, margins scabrous, apices mucronate, faces glabrous, abaxial raised midribs scabrous to glabrate;

basal withering by flowering, subpetiolate to shortly petiolate (petioles winged, sheathing, coarsely ciliate), blades oblanceolate to oblong-oblanceolate, 45–65 × 5–8 mm, bases cuneate, margins shallowly crenate, strigoso-ciliate, apices acute, obtuse or rounded;

proximal cauline withering by flowering, subpetiolate or sessile, blades elliptic-lanceolate to linear-oblanceolate or -lanceolate, 40–120 × 5–20 mm, reduced distally, bases cuneate to slightly attenuate or rounded, slightly clasping, margins serrulate-crenate or entire, apices acute to acuminate;

distal sessile, blades oblanceolate or elliptic-lanceolate to linear-lanceolate or linear-oblong, (10–)15–100 × 1–5 mm, gradually reduced distally (more strongly so on branches), bases cuneate or rounded, margins entire, apices acuminate.

thin, margins entire (basal sometimes serrulate), sometimes ciliate or remotely scabrous, acute to ± obtuse, faces glabrous;

basal withering by flowering, petiolate, blades oblanceolate to spatulate, 20–115 × 2–15 mm [cult.], bases attenuate;

proximal cauline withering by flowering;

cauline subpetiolate or sessile (distal), blades oblanceolate to linear, 10–80 × 1.5–10 mm, reduced distally, bases cuneate.

long, thin, (1–)4–10(–25) cm, branches to 10 cm, bracts 8–15, regularly spaced but becoming crowded distally, appressed or ascending, linear-oblong to subulate, 1.5–4 mm, grading into phyllaries, mucronulate.

glabrous, bracts linear.

turbinate to cylindro-campanulate, 7–12 mm.

narrowly campanulate, 5–9 mm.

14–20;

corollas light blue to lavender or purple, laminae 12–20 × (1–)1.5–2.8 mm.

90–110 in 4–5+ series;

corollas pink to pinkish white, laminae 1.5–2 × 0.1–0.2 mm (surpassing style branches, barely surpassing disc corollas; tubes ± 3 mm).

15–20+;

corollas yellow turning purple, (4.5–)5–7 mm, tubes slightly shorter than narrowly funnelform throats, lobes triangular, 0.5–1 mm.

± 37;

corollas yellow, 4.4–5.2 mm, barely ampliate, tubes much longer than cylindric limbs, lobes lanceolate, ± 0.3 mm.

in 6–9 series, appressed or ± spreading, shortly oblong-lanceolate to subulate (outer) to linear-oblong or linear (inner), strongly unequal, bases indurate 1/2–5/6, abaxially rounded, margins scarious, erose, hyaline, sparsely ciliolate distally, green zones oblanceolate to rhombic-oblanceolate, in distal 1/6–1/2, apices acute (outer) to obtuse or rounded (inner), often callous-mucronulate, faces glabrous.

in 3–4 series, ± spreading, oblong-oblanceolate or -lanceolate to obovate, subequal to ± unequal, linear-lanceolate or linear (innermost), bases scarious, margins narrowly scarious, hyaline, erose, ciliolate, green zones (outer) foliaceous, (inner) lanceolate, apices obtuse to rounded, inner acute, mucronulate, faces glabrous.

in open, broad, much ramified, paniculiform arrays, branches ascending to arching, thin, brittle, remotely leafy, rarely sessile.

(radiate) in narrow, paniculiform to spiciform arrays, branches often in axils of nearly every leaf, ascending.

yellow-tan or light brown to gray, obovoid, ± compressed, (1.8–)2–2.8 mm, 2–4-nerved, faces minutely strigillose;

pappi whitish to reddish brown, 4.5–6.4 mm.

tan, obovoid, ± compressed, 2 mm, 2–3-nerved, faces strigillose;

pappi white to yellowish, 6.3–7.5 mm.

= 96.

= 14.