Flora of North America species comparison

1–7+, erect, sometimes branched proximally, straight, glabrous proximally, sometimes thinly scabridulous distally.

cauline;

proximal reduced, withering by flowering, firm;

sessile;

blades oblong or elliptic-oblong to lanceolate (sometimes narrowly), 40–120 × 5–25 mm, bases ± clasping, sometimes cuneate, main veins ± marked, margins entire, indurate, sparsely to densely scabridulous, apices acute to obtuse, mucronate (margins recurved at apex), faces glabrous.

glabrous to sometimes thinly scabridulous or villosulous;

bracts 0–2, foliaceous, margins villose-ciliate or glabrous.

campanulate, 6–9 mm.

(8–)10–15(–19);

corollas pale lavender, 8–18 × 0.7–1.3 mm.

12–32;

corollas yellow turning reddish purple, barely or not ampliate, 6.8–7.5 mm, tubes narrowly cylindric, shorter than funnelform throats, lobes spreading, lanceolate, 0.7–1.3 mm.

(15–35) in 4–5 series, keeled or rounded, ovate or oblong (outer) to lanceolate (inner), unequal, membranous, bases indurate, green zones in distal 1/5–1/3 or less (outer), reduced to midnerve or none (inner), margins erose, narrowly scarious, hyaline, sometimes purplish distally (inner), entire to villoso-ciliolate, apices ± appressed, obtuse or acute (outer), often purple and acute or acuminate (inner), sometimes apiculate, faces glabrous.

2–116+ usually in corymbiform, sometimes in open, paniculiform arrays.

tan to stramineous, fusiform, ± compressed, 3.8–4.8 mm, ribs 7–10 (stramineous), faces glabrous or sparsely strigillose;

pappi of (ca. 37) yellowish to cinnamonish bristles 6.4–7.2 mm.