Flora of North America species comparison

1–10+, erect, stout, hairy.

1(–3), ascending to erect, velutinous or loosely hirsutulous.

basal and proximal cauline usually present at flowering, abruptly narrowed to long petioles, blades ovate to rhombic, 80–200 × 24–50 mm, firm, flat, margins entire to crenate, sometimes undulate, apices obtuse to acute, faces densely hairy;

mid to distal cauline sessile, blades ovate, 30–50 × 15–17 mm, stiff, greatly reduced distally, margins entire or finely serrate, sometimes undulate, apices acute to obtuse.

basal and proximal cauline petioles winged (narrowly so in proximalmost), to 10 cm, bases flared, auriculate-clasping (at least in proximalmost), blades broadly ovate, 35–120 × 30–70 mm, bases cordate, margins serrate, adaxial faces glabrate or sparsely finely scabrous or finely strigose, abaxial pilose on nerves;

mid cauline similar to proximal, petioles shorter, broadly winged, strongly auriculate-clasping;

distal sessile, blades ovate, 20–40 × 10–20 mm, bases winged, narrowed, auriculate-clasping, becoming ovate and cordate-clasping in arrays, reduced to 10 mm.

3–15 mm, strigillose-canescent, bracteoles 1–3, linear-lanceolate.

1–3 mm;

bracteoles linear-lanceolate, minute, grading into phyllaries.

campanulate, 6–8 mm.

campanulate, 3–4(–5) mm.

6–13;

laminae 1.4–5.4 × 1.2–1.9 mm.

1–3;

laminae 1–2 × 0.5–0.75 mm.

14–35;

corollas 4.3–6.1 mm, lobes 0.6–1.1 mm.

4–8;

corollas 3–3.5 mm, lobes ca. 1 mm.

in 3–4 series, unequal, oblong, conspicuously striate (3–5 pronounced nerves), obtuse.

in 2–3 series, lanceolate, strongly unequal, acute to attenuate, sparsely short strigose.

9–190, in corymbiform arrays, compact or branches long and spreading, densely hairy throughout.

50–100, secund, in paniculiform arrays, branches relatively few, short to elongated and arching.

(obconic) 0.8–1.7 mm (ribbed), glabrous or strigillose apically;

pappi 3–4 mm.

2–2.5 mm, distinctly ribbed, short-strigose;

pappi ca. 2 mm (bristles in 2 weak series, shorter than cypsela bodies, inner weakly clavate).

= 18.