Flora of North America species comparison

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

glabrous.

usually single, sometimes loosely clustered.

usually single, sometimes loosely 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.

progressively reduced distally;

petiolate;

blades narrowly lanceolate to oblanceolate, 8–15(–20+) × (0.5–)1–3(–4) cm, bases tapered, margins entire or dentate (mid and distal leaves sessile, bractlike).

± 13;

corolla laminae 12–15 mm.

0.

± 13, 5–7 mm, tips green or greenish.

usually ± 13, rarely ± 8, 5–9 mm, tips green.

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

of 2–6 lance-linear bractlets.

20–60 in corymbiform arrays.

nodding, (3–)8–16(–40+) in racemiform or paniculiform arrays.

hairy.

glabrous.