Flora of North America species comparison

1–20+, erect, proximally sparsely to moderately strigoso-villous, distally usually moderately to densely so.

1–10+, ascending-erect, glabrous, often short fascicles of leaves present at nodes in axes of distal cauline leaves.

basal 0;

proximal cauline sessile, blades narrowly to broadly oblanceolate, 35–75(–100) × (6–)7.5–14(–20) mm, proximal much smaller, tapering to bases, margins subentire or finely serrulate to coarsely, sharply serrate (teeth 0–9 per side), ciliate, 3-nerved, sometimes obscurely so, apices acute, abaxial faces glabrate to sparsely short-strigose, adaxial glabrous;

mid to distal cauline sessile, blades oblanceolate, becoming lanceolate distally, 20–60 × 4–8(–11) mm, largest near mid stem, somewhat to much reduced distally, margins entire or finely serrulate, rarely serrate (teeth 1–8 per side), usually becoming entire to sparsely serrulate distally, ciliate, apices acute, faces glabrous or sparsely strigoso-villous, more so along abaxial nerves.

rosettes present at flowering;

basal and proximal cauline tapering to elongate, winged petioles, bases nearly sheathing stems, blades linear-lanceolate, 50–260 (including petiole) × 5–45 mm, somewhat fleshy (fresh), margins entire, faces glabrous;

mid and distal cauline crowded (robust plants), sessile, blades linear-lanceolate to lanceolate, 20–130 × 5–10(–25) mm, reduced distally, margins entire, apices acute to attenuate, glabrous.

2–7 mm, sparsely to moderately short strigoso-villous;

bracteoles 1–3, linear, rarely minutely stipitate-glandular.

2–8 mm, glabrous or sparsely strigose;

bracteoles 1–3, distally grading into phyllaries.

narrowly campanulate, 2.5–3.5(–4) mm.

campanulate, 2.5–4 mm.

(8–)11–15(–17);

laminae 1–2.5 × 0.1–0.4(–0.7) mm.

8–12;

laminae 1–2.5 × 1 mm.

(3–)5–11(–16);

corollas 2.6–3.7(–4) mm, lobes 0.5–1.2 mm.

10–20;

corollas 3–4 mm, lobes 1–1.5 mm.

in 3–4 series, strongly unequal, margins sparsely long ciliate, acute, faces glabrous, rarely sparsely minutely stipitate-glandular;

outer lanceolate, inner linear-lanceolate.

in 3–4 series, linear-triangular, unequal, margins involute near tip, sharply acute, the outer 1/3–2/3 length of inner (1–3 × 0.4–0.9 mm), midribs usually enlarged and translucent.

12–500+, sometimes secund, in short to long, thyrsiform or narrowly secund-pyramidal paniculiform arrays, usually congested, club-shaped to rarely wand-shaped, (2.5–) 10–20 × (2–)4–8(–10) cm, branches usually ascending or sometimes arching spreading.

70–320, usually not secund, in thyrsiform-paniculiform arrays, sometimes apically secund, 5–25(–50) × 2–14 cm;

branches ascending to arching.

(narrowly obconic) 1–1.5 mm, sparsely to moderately strigose;

pappi 2.5–3.3 mm.

(narrowly obconic) 2 mm (5–7 broad ribs lighter than body), sparsely to moderately strigose;

pappi 2–3 mm.

= 18, 36.

= 18.