Flora of North America species comparison

0–12 mm.

0–30 mm.

50–130 × 3–7 mm;

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

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.

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

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

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, 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 3.5–4 mm;

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

stamens 4, connective 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, 3.2–3.8 mm.

3, 1.8–2.4 mm.

= 20.