Flora of North America species comparison

glabrous.

glabrous or sparsely and unevenly tomentose when young.

1–(2–4).

usually 1.

(thickish-turgid) progressively reduced distally; petiolate;

blades broadly lanceolate to subelliptic, 2.5–15 × 1–5 cm, bases tapered, margins sharply dentate to subentire (some teeth callous; mid leaves sometimes larger than proximal; distal leaves sessile, smaller, often clasping).

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).

± 8 or ± 13;

corolla laminae 5–12 mm.

0.

(± 8) ± 13 or ± 21, 5–9 mm, tips black (villous).

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

of (1–)3–6 linear to filiform bractlets (lengths to 1/3 phyllaries).

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

(1–)4–12 in corymbiform arrays.

8–20 in loose, corymbiform arrays.

glabrous.

usually sparsely hairy, sometimes nearly glabrous.

= 40.

= 40.