Flora of North America species comparison

0–20 mm.

0–5(–7) mm.

40–200 × 10–30 mm;

blade lanceolate-spatulate to narrowly ovate, margins entire, sometimes toothed, veins conspicuous, surfaces usually glabrous.

10–70 × (0.8–)1–2 mm;

blade linear to almost filiform, margins entire, veins conspicuous or not, surfaces glabrous or hairy.

25–200 mm, slightly surpassing leaves, glabrous.

10–80 mm, glabrous or hairy.

brownish or greenish, 45–250 mm, densely flowered, rachis not clearly visible between flowers;

bracts broadly ovate, 2 mm, length 0.8–1 times sepals.

greenish, brownish, or gray, (30–)50–150 mm, densely or loosely flowered;

bracts ovate, 2–2.5 mm, length 0.8–1.2 times sepals.

sepals 2–2.5 mm;

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

stamens 4.

sepals 2–2.5 mm;

corolla radially symmetric, lobes spreading or reflexed, not forming a beak, 0.5–1 mm, base obtuse;

stamens 2.

3 or 4, 2–2.3 mm.

(3 or)4–9(–12), 1.5–2.5 mm.

= 24.

= 12, 20, 36.