Flora of North America species comparison

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

(sometimes lignescent near bases) proximally glabrescent, distally persistently tomentose, at least in the region of the heads, 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 (not crowded, internodes mostly 5+ mm), oblong-oblanceolate to oblanceolate (the distal lanceolate), 1.5–5(–8) cm × 4–10(–15) mm, bases auriculate-clasping, not decurrent, margins flat or slightly revolute, often undulate, faces bicolor (at least basal and proximal cauline), abaxial white-tomentose, adaxial bright green and ± densely glandular.

broadly campanulate, 5–7 mm.

turbinate-campanulate, 5–5.5(–6) mm.

38–96.

41–73.

4–8(–11).

5–13.

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

in 4–5 series, white or sometimes slightly pinkish (opaque, shiny), ovate to oblong-ovate or oblong (often longitudinally wrinkled or grooved), glabrous.

in corymbiform (sometimes rounded to elongate) arrays.

in corymbiform arrays.

ridged, smooth.

ridged, smooth.