Flora of North America species comparison

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

1–20+, erect (stout), conspicuously spreading-hirsute, at least distally.

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.

basal and proximal cauline usually withering by flowering except on new shoots, tapering to broadly winged petioles, blades oblanceolate, 30–50 × 8–15 mm, rapidly increasing in size distally, margins shallowly serrate, scabroso-strigose, faces often more densely hairy than distal;

mid to distal cauline numerous, crowded, sessile, blades lanceolate-ovate to elliptic-oblong, larger ones 35–120 × 8–35 mm, much reduced distally, bases broad and ± clasping, margins obscurely serrulate or entire, faces usually moderately hirsuto-villous on midnerves, often less so abaxially, adaxial sparsely strigose or glabrous.

1–6 mm;

bracteoles ovate, minute, grading into phyllaries.

2–8 mm, sparsely to moderately strigillose;

bracteoles 1–3, linear to linear-lanceolate, tending to group proximal to involucres, sometimes grading into phyllaries.

campanulate, 3–4.5 mm.

narrowly campanulate, 3.5–5.5 mm.

3–7;

laminae 1.5–2 × 0.5–1 mm.

(2–)4–10;

laminae 1.2–2.5 × 0.2–0.5 mm.

4–7;

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

(2–)4–7;

corollas 4–5 mm, lobes 0.5–1 mm.

in 3 series, strongly unequal, obtuse or rounded;

mid broadly oblong, inner narrowly so.

in 4–5 series, unequal, glabrous;

outer narrowly ovate-lanceolate, mid and inner linear-lanceolate.

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.

35–500, in paniculiform arrays, usually dense, branches recurved-secund.

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

pappi 2–2.5 mm.

(narrowly obconic) 1.5–1.8 mm, sparsely strigillose, sometimes only apically;

pappi 3–4 mm.

= 18.

= 18.