Flora of North America species comparison

0–10 mm.

0–15 mm.

50–300 × 10–30 mm;

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

(25–)50–120 × 1–4 mm;

blade linear, margins entire, rarely toothed, veins conspicuous or not, surfaces villous.

75–150 mm, sparsely hairy.

(10–)40–240(–260) mm, hairy, hairs antrorse, long and short and patent, long.

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

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

grayish or brownish, 40–120 mm, densely flowered, flowers in whorls or pairs;

bracts triangular or narrowly ovate, 2–10 mm, length 1–2 times sepals, apex acute or acuminate.

sepals 2 mm;

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

stamens 4.

sepals 2.2–4.8 mm;

corolla bilaterally symmetric, lobes reflexed, 1.6–2.1 mm, base cordate;

stamens 4, connective usually elongated, apex acute.

2, 2 mm.

2, 2.2–2.6 mm.

= 24.

= 20.