Flora of North America species comparison

0–10 mm.

0–20 mm.

50–300 × 10–30 mm;

blade lanceolate, margins entire, sometimes toothed, veins conspicuous, laterals branching from base, surfaces sparsely hairy.

40–200 × 10–30 mm;

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

75–150 mm, sparsely hairy.

25–200 mm, slightly surpassing leaves, glabrous.

brownish or greenish, 100–450 mm, loosely flowered, rachis visible between flowers;

bracts ovate, 1 mm, length 0.5–0.6 times sepals.

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.

sepals 2 mm;

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

stamens 4.

sepals 2–2.5 mm;

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

stamens 4.

2, 2 mm.

3 or 4, 2–2.3 mm.

= 24.

= 24.