Flora of North America species comparison

glabrous or sparsely and unevenly tomentose when young.

unevenly villous-tomentose or floccose, glabrescent.

usually 1.

single (from loosely clustered basal leaves).

evenly distributed; petiolate;

blades ovate to oblanceolate, 2–10 × 0.5–2(–4) cm, bases tapered, margins lobulate to dentate, ultimate margins often secondarily dentate to denticulate (distal leaves sessile).

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).

0.

± 8;

corolla laminae 8–15 mm.

± 21, 4–6 mm, tips usually green, sometimes black.

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

of 2–4(–6+) bractlets (prominent, black-tipped, lengths about 1/4 phyllaries).

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

8–20 in loose, corymbiform arrays.

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

usually sparsely hairy, sometimes nearly glabrous.

glabrous.

= 40.

= 40.