Flora of North America species comparison

0–12 mm.

0–10 mm.

50–130 × 3–7 mm;

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

20–50 × 2–15 mm;

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

80–250 mm, hairy, hairs patent, long and antrorse, short.

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

greenish, whitish, or brownish, 50–120 mm, densely flowered, flowers in whorls or pairs;

bracts triangular, 2.5–8 mm, length 0.6–2.2 times sepals.

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

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

sepals 3.5–4 mm;

corolla radially symmetric, lobes reflexed, 3–3.6 mm, base slightly cordate;

stamens 4, connective elongated, apex acute.

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, 3.2–3.8 mm.

2, 1.5–2.2 mm, adaxial face flat.

= 20.

= 24.