Flora of North America species comparison

1(–5), erect, usually branching only in array, moderately to densely hispido-villous.

basal and proximal cauline tapering to winged petioles, blades oblanceolate to ovate, 35–210 × 15–50 mm, margins serrate or crenate, apices acute, sparsely to moderately soft hispido-villous, more densely so on abaxial nerves;

rosettes on rhizome branches sometimes present at flowering;

mid and distal cauline sessile, blades elliptic, 15–50 × 5–15 mm, distally reduced, margins entire.

1.5–2.5 mm, hispido-villous to canescent.

campanulate, 3–5 mm.

7–9 (white);

laminae 3.5–4 × 1–1.5 mm.

9–12;

corollas 3–4 mm, lobes 0.6–1.2 mm.

in 3–4 series, appressed, strongly unequal, oblong, margins white, scarious, apices obtuse to rounded.

12–270 (1–15 per branch) in usually wand-shaped paniculiform arrays, of short axillary and terminal racemiform, non-secund clusters, sometimes proximal branches elongated, ascending and bearing short axillary and terminal racemiform clusters.

(narrowly obconic) 1.5–2.5 mm, smooth or with 5–8 narrow, darker, sunken striations, glabrous or sparsely strigose;

pappi 2.5–3.5 mm (sometimes strongly clavate).

=18.