Flora of North America species comparison

0–10 mm.

0–20 mm.

60–120 × 4–10 mm;

blade linear, margins toothed (teeth to 4 mm), rarely entire, veins conspicuous or not, surfaces villous or sericeous.

30–300 × 5–25(–45) mm;

blade lanceolate to oblanceolate, margins entire or toothed, veins conspicuous, surfaces glabrous or sericeous.

280–580 mm, hairy, hairs antrorse, long and short.

300–400 mm, groove-angled, hairy.

greenish or brownish, 50–180 mm, densely flowered, flowers in whorls or pairs;

bracts ovate or triangular, 1.5–6 mm, length 0.6–1.4 times sepals, apex acute or acuminate.

grayish, whitish, or yellowish, (5–)100–450(–1000) mm, usually shorter than scape, densely flowered, shiny;

corolla lobes of neighboring flowers often overlapping;

bracts broadly ovate, 2 mm, length 0.8–1 times sepals.

sepals 2.5–4 mm;

corolla bilaterally symmetric, abaxial and lateral lobes reflexed, adaxial erect, 2.2–2.5 mm, base slightly cordate;

stamens 4, connective significantly elongated, apex acute.

sepals 2–2.5 mm, adaxial 2 connate;

corolla radially symmetric, lobes reflexed, 2–2.5 mm, base obtuse;

stamens 4.

2, 2.4–3.4 mm.

(1 or)2, 2–3(–4) mm.

= 20.

= 12.