Flora of North America species comparison

glabrous or sparsely and unevenly tomentose when young.

lanate-arachnose or tomentose, unevenly glabrescent.

usually 1.

1(–2).

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).

(often purplish abaxially) reduced distally; petiolate;

blades ovate to subelliptic, (5–)6–10(–15) × (2.5–)3–5(–9) cm, bases tapered or contracted, margins subentire to denticulate (denticles callous; mid and distal leaves bractlike).

0.

± 13;

corolla laminae 5–10 mm.

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

(± 13) ± 21, 5–7 mm, tips green.

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

of 2–5+ bractlets (largest to 3 mm).

8–20 in loose, corymbiform arrays.

(2–)5–12(–20) in corymbiform arrays.

usually sparsely hairy, sometimes nearly glabrous.

hairy (especially on angles).

= 40.

= 40.