Flora of North America species comparison

100–350 mm, freely branched.

0–10 mm.

cauline, opposite, 60–80 × 1–3 mm;

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

20–50 × 2–15 mm;

blade narrowly obovate or narrowly elliptic, margins toothed, veins conspicuous, surfaces densely pilose or glabrate.

100–650 mm, hairy.

10–50 mm, hairy, hairs appressed or nearly patent.

greenish or brownish, (50–)150–250 mm, densely flowered, eglandular;

bracts proximal strongly differing from distal, ovate, 2–5(–7) mm, length 1–1.5 times sepals, proximal bracts: apex acute.

greenish or brownish, 40–60 mm, densely flowered;

bracts triangular, 2–3.1 mm, length 0.7–1.1 times sepals.

sepals 2–3 mm;

corolla radially symmetric, lobes reflexed, 2–4 mm, base obtuse;

stamens 4.

sepals 1.8–2.8 mm;

corolla radially symmetric, lobes patent or erect, forming a beak, 1.7–3.1 mm, base obtuse;

stamens 4.

2, 2–2.5 mm.

2, 1.5–2.2 mm, adaxial face flat.

= 12.

= 24.