Flora of North America species comparison

0–10 mm.

0–30 mm, often branched.

30–80 × 1–4 mm;

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

10–230 × 0.5–12 mm;

blade linear or narrowly elliptic, margins toothed, veins conspicuous or not, surfaces villous or lanate to sericeous.

5–60 mm, hairy, sometimes glabrous.

10–400 mm, hairy, hairs woolly, long.

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

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

grayish or brownish, 20–400 mm, densely flowered, flowers in spirals;

bracts ovate or elliptic, 1.7–4 mm, length 0.8–1.2 times sepals, apex not reached by green nerve.

sepals 2 mm;

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

stamens 2.

sepals 1.9–3.5 mm;

corolla radially symmetric, lobes reflexed, 1.3–2.8 mm, base cuneate;

stamens 4.

10–25(–30), 0.5–0.8 mm.

2, 2–2.6 mm.

= 12.

= 8.