Flora of North America species comparison

1, erect (often with purple or purplish brown areas), glabrous or glabrate, sometimes strigillose in leaf axils.

1–10+, ascending to erect (light to dark brown), glabrous or densely canescent distally.

thin (green to dark green), margins often strigilloso-ciliolate, faces glabrous;

basal withering by flowering, long-petiolate (petiole bases sheathing), sparsely ciliate, blades ovate to oblanceolate, 10–90 × 6–14 mm, bases attenuate to cuneate, rounded, margins entire or serrulate or crenulate, apices rounded, obtuse, or acute;

proximal cauline withering by flowering, petiolate, subpetiolate, or sessile, blades narrowly lanceolate or subulate, 20–100(–200) × 1.5–10(–20) mm, bases attenuate, margins subentire, entire, or serrulate, apices acute to acuminate;

distal sessile, blades narrowly lanceolate to subulate, 5–113 × 0.5–5.5 mm, apices acuminate.

(green to graysih) soft to firm;

basal withering by flowering, sessile, blades (1–3-nerved) elliptic-lanceolate, 10–43 × 5–15 mm, bases attenuate, margins usually entire, rarely remotely serrate, piloso-ciliate, apices acute to obtuse, faces silvery silky-pilose to sparsely pilose;

proximal cauline withering by flowering, sessile, blades oblanceolate, 20–35 × 5–15 mm, bases rounded, subclasping, margins entire, scabrous to silky-pilose, apices acute to obtuse, cuspidate mucronate, faces ± densely silky;

distal sessile, blades usually oblong to lanceolate, rarely ovate, 9–15 × 1.8–5 mm, reduced distally, bases cuneate, margins entire, apices acute, mucronate, faces ± densely silky or sparsely strigose, sometimes glabrate (var. devestitum).

(0.2–)0.5–4 cm, bracts 4–8(–17).

densely hairy, bracts becoming linear, grading into phyllaries.

cylindric to turbinate, 5–7(–8.2) mm.

campanulate to narrowly campanulate, 5–7 mm.

16–30(–54) in 1–3 series;

corollas white, pink, or lavender, laminae 1.3–7 × 0.2–1.3 mm.

8–12;

corollas rose-purple, rarely white, laminae 4–9 × 1–1.5 mm.

4–10(–13);

corollas yello, sometimes tinged with purple, 3.4–5.2 mm, throats narrowly funnelform, lobes ± spreading to erect, narrowly triangular, 0.3–0.7 mm, glabrous.

(9–)11–17(–21);

corollas pink turning purple, 4.5–6 mm, tubes shorter than narrowly funnelform throats (thinly puberulent), lobes triangular, 0.4–0.7 mm.

in 3–5 series, broadly or narrowly lanceolate to subulate, unequal, bases indurate, margins hyaline, often purple-tinged, entire, green zones lanceolate (usually narrow, sometimes broad and covering most of distal portion), apices acute, faces glabrous.

in 3–5 series, appressed, lanceolate-oblong, strongly unequal, bases (tan) ± indurate, margins scarious proximally, green distally, green zones restricted to apex, obscured by hair, apices usually acute, sometimes acuminate, usually mucronate, sometimes subspinulose, faces ± densely silky.

(10–) 30–100(–150), in open, diffuse, paniculiform arrays.

in narrow, paniculiform (virgate) arrays (1–3(–5) per branch).

light brown to purple, narrowly obovoid to fusiform, sometimes ± compressed, (1.2–)1.5–2.7(–3) mm, 5-nerved, faces sparsely strigillose;

pappi white, (3–)3.5–5.5 mm.

obovoid, not compressed, 2.5–3.5 mm, 7–10-nerved, faces densely strigose;

pappi tan, (3.5–)4–6 mm.