Flora of North America species comparison

white-tomentose, sometimes lightly so, usually not glandular, rarely glandular near bases.

loosely white-tomentose, not glandular.

blades linear-lanceolate to elliptic or oblanceolate, 2.5–10 cm × 2–10 mm (relatively even-sized), bases not clasping, not decurrent, margins flat, faces bicolor, abaxial white-tomentose, adaxial green, usually glabrous or slightly glandular, sometimes with persistent light tomentum.

blades (crowded, internodes 1–5, sometimes to 10 mm) narrowly obovate to subspatulate, 1–3(–6) cm × 2–8 mm (distal smaller, oblanceolate to narrowly oblong or linear), bases subclasping, usually decurrent 1–2 mm, margins weakly revolute, faces mostly concolor to weakly bicolor, abaxial gray-tomentose, adaxial usually gray-tomentose, sometimes glabrescent, neither glandular.

broadly campanulate, 5–7 mm.

broadly campanulate, 3–4 mm.

38–96.

135–160.

4–8(–11).

5–10 (corollas red-tipped).

in 4–6 series, white (opaque, usually shiny, sometimes dull), ovate to ovate-oblong, glabrous or tomentose (bases).

in 3–4 series, silvery gray to yellowish (hyaline), ovate to ovate-oblong, glabrous.

in corymbiform (sometimes rounded to elongate) arrays.

in terminal glomerules (1–2 cm diam.).

ridged, smooth.

not evidently ridged (conspicuously dotted with whitish, papilliform hairs; pappus bristles loosely coherent basally, released in clusters or easily fragmented rings).

= 14, 16, 28.