Flora of North America species comparison

usually 1, ascending to erect, uniformly short villoso-strigose, occasionally glabrate proximally.

1–10+, ascending-erect, glabrous, sometimes sparsely strigose in arrays.

basal and proximal cauline short-petiolate, blades broadly ovate or elliptic-ovate, margins serrate, ± 3-nerved and pinnately nerved, abaxial faces (at least) evenly short villoso-strigose;

mid and distal cauline like proximal, 20–70 × 10–40 mm (1.3–2 times as long as wide), usually only those near arrays reduced and 1-nerved.

sometimes rosettes of smaller leaves present at flowering;

basal and proximal cauline tapering to elongate, winged petioles, bases nearly sheathing stems, blades linear-lanceolate, 50–200 (including petiole) × 4–9 mm, reduced distally, margins entire, apices acute, faces glabrous;

mid and distal cauline sessile, blades linear, 25–100 × 3–7 mm, reduced distally and sometimes scalelike, margins entire.

1–6 mm;

bracteoles ovate, minute, grading into phyllaries.

3–8 mm, glabrous or glabrate;

bracteoles 3–6, grading into phyllaries.

campanulate, 3–4.5 mm.

campanulate, 2.5–4 mm.

3–7;

laminae 1.5–2 × 0.5–1 mm.

8–10;

laminae 1.2–2.5 × ca. 0.75 mm.

4–7;

corollas (abruptly ampliate) 3–3.5 mm, lobes ca. 1 mm.

10–21;

corollas 2.8–4 mm, lobes 1 mm.

in 3 series, strongly unequal, obtuse or rounded;

mid broadly oblong, inner narrowly so.

in 3–4 series, linear-triangular, outer 1/3–1/2 length of inner, 1–3 × 0.4–0.9 mm, unequal, margins involute apically, midribs usually enlarged and translucent, inner with margins involute, apices sharply acute.

30–200+, apparently sometimes drooping, in open leafy, secund pyramidal, paniculiform arrays, branches recurved, leafy-bracteate, secund, proximalmost branch sometimes separated by several nodes from next.

15–190, in racemiform to narrowly paniculiform arrays, rarely slightly secund, 12–45 × 2–11 cm, branches ascending.

1.5–2 mm (4–8 translucent ribs), moderately short-strigose;

pappi 2–2.5 mm.

(obconic) 1–1.5 mm (4–7 ribs lighter than body), sparsely to moderately strigose;

pappi 1.5–2 mm.

= 18.

= 18.