Flora of North America species comparison

100–350 mm, freely branched.

100–400 mm, freely branched.

cauline, opposite, 30–60 × 1–4 mm;

blade linear to linear-lanceolate, margins entire or slightly toothed, veins conspicuous or not, surfaces hairy.

cauline, opposite, 30–60 × 0.75–1 mm;

blade linear to linear-lanceolate, margins entire, veins inconspicuous, surfaces hairy.

30–50 mm, hairy.

30–80 mm, hairy.

greenish or brownish, 40–65 mm, densely flowered, glandular-hairy;

bracts all similar, ovate, 3–5 mm, lengths 1–1.5 times sepals.

greenish or brownish, 40–85 mm, densely flowered;

bracts broadly ovate, 5–6 mm, lengths equal to sepals.

sepals 3–3.5 mm;

corolla radially symmetric, lobes reflexed, 2–3 mm, base obtuse;

stamens 4.

sepals 5–6 mm;

corolla radially symmetric, lobes reflexed, 3–3.5 mm, base obtuse;

stamens 4.

lanceoloid.

2, 2–3 mm.

1 or 2, 2 mm.

= 12.

= 12.