Flora of North America species comparison

0–15 mm.

0–30 mm.

(25–)50–120 × 1–4 mm;

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

50–220 × 9–60 mm;

blade elliptic to narrowly elliptic, margins with inconspicuous teeth, veins conspicuous, surfaces hairy, adaxial surface hairs floccose, slender, 4–6 × 0.01–0.03 mm.

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

55–220 mm, lanate, hairs variously directed, long.

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.

greenish or brownish, 200–500 mm, densely flowered, flowers less crowded proximally;

bracts narrowly triangular or triangular, 2–2.8 mm, lengths 0.9–1 times sepals.

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.

sepals 1.9–2.7 mm;

corolla radially symmetric, lobes erect, forming a beak, 2–2.9 mm, base obtuse;

stamens 4.

2, 2.2–2.6 mm.

3, 1.8–2.4 mm.

= 20.