Flora of North America species comparison

0–10 mm.

0–20 mm.

30–80 × 1–4 mm;

blade linear, margins lobed, rarely entire, veins conspicuous or not, surfaces hairy, sometimes glabrous.

20–150(–400) × 10–120(–170) mm;

petiole to 200 mm;

blade ovate to cordate-ovate, margins entire or toothed, veins conspicuous, surfaces glabrous or hirsute.

5–60 mm, hairy, sometimes glabrous.

50–250(–500) mm, surpassing leaves or not, glabrous or hirsute.

greenish or brownish, 50–150 mm, loosely or densely flowered;

bracts ovate, 2 mm, length 0.9–1.1 times sepals.

brownish or greenish, (20–)50–300(–400) mm, densely flowered;

bracts lanceolate, 0.5–1 mm, length 0.3–0.7 times sepals.

sepals 2 mm;

corolla radially symmetric, lobes spreading, 0.5–1 mm, base obtuse;

stamens 2.

sepals 1.5–2 mm;

corolla radially symmetric, lobes reflexed, 0.5–1 mm, base obtuse;

stamens 4.

(2–)4–5 mm, dehiscing at middle.

10–25(–30), 0.5–0.8 mm.

5–35, 0.5–1 mm.

= 12.

= 12.