Flora of North America species comparison

floccose-tomentose, unevenly glabrescent (persistently hairy on abaxial leaf faces).

closely lanate to floccose-tomentose, unevenly glabrescent.

usually single, sometimes loosely clustered.

usually single, rarely clustered.

± evenly distributed (basal and proximal sometimes withering before flowering);

petiolate (proximal) or sessile;

blades ovoid or oblong to spatulate (usually pinnatifid to pinnatisect, lobes ± lanceolate to linear), (3–)5–12 × (1.5–)2–4 cm, bases tapered to ± truncate, ultimate margins (often revolute) dentate or entire.

reduced distally; obscurely petiolate;

blades oblanceolate to lanceolate, (4–)6–12+ × (1–)1.5–3 cm, bases tapering to winged petioles, margins dentate to denticulate (denticles dark, cartilaginous; mid and distal leaves smaller, bractlike).

± 13;

corolla laminae 12–15 mm.

usually ± 5, sometimes 0;

corolla laminae 5–8(–10) mm.

± 13, 5–7 mm, tips green or greenish.

± 13, 3–5 mm, tips usually black.

of 4–6(–10) bractlets (lengths to 1/2 phyllaries).

0 or of 1–3+ lance-deltate to lance-linear bractlets (mostly less than 1 mm).

20–60 in corymbiform arrays.

(10–)14–24(–30+) in corymbiform arrays.

hairy.

glabrous.