Flora of North America species comparison

glabrous or with tufts of white hairs in leaf axils.

unevenly villous-tomentose or floccose, glabrescent.

usually 1 (branching distally, unevenly reddish, usually somewhat lax).

single (from loosely clustered basal leaves).

evenly distributed;

petiolate (proximal) or sessile;

blades lanceolate to lance-linear, 3–10+ × (0.5–)1–2 cm, bases tapered (or auriculate), margins (sometimes revolute) unevenly dentate to subentire (mid and distal leaves similar, smaller, bases expanded, ± truncate to cordate, clasping).

progressively reduced distally; ± petiolate;

blades ovate to oblanceolate, (3–)4–8(–10) × 2–3(–4) cm, bases tapered, margins shallowly dentate (mid and distal leaves smaller, bractlike, often clasping).

usually ± 8 or ± 13, rarely 0;

corolla laminae 8–10 mm.

± 8;

corolla laminae 8–15 mm.

± 21, (4–)5–8 mm, tips often with minute black dots.

(± 8) ± 13, 8–10 mm, tips black (villous).

of 3–5+ linear to subulate bractlets (to 1.5 mm).

of 2–7 lance-linear to linear bractlets (lengths 1/3–2/3 phyllaries).

4–12 in loose, corymbiform arrays.

erect or weakly nodding (especially in bud), (2–)5–9(–12) in loose, cymiform arrays.

hairy.

glabrous.

= 40.