Flora of North America species comparison

0–20 mm.

0–20 mm.

prostrate, sometimes ascending, 40–200 × 30–70 mm;

blade elliptic to ovate, margins entire or toothed, veins conspicuous, surfaces hairy, hairs 0.5 mm.

ascending, 180–250 × 6–20 mm;

blade linear to lanceolate or oblanceolate, margins entire, rarely toothed, veins conspicuous, surfaces glabrate or hairy, hairs 1 mm.

80–300 mm, not groove-angled, hirsute.

50–230 mm, not groove-angled, hairy or glabrous.

grayish or whitish, 100–400 mm, densely flowered, shiny;

corolla lobes of neighboring flowers overlapping;

bracts ovate, 1.8–2 mm, length 0.9–1 times sepals.

grayish or whitish, 80–350 mm, usually densely flowered, shiny;

corolla lobes of neighboring flowers often overlapping;

bracts broadly ovate, 1.8–2 mm, length 0.9–1 times sepals.

sepals 2 mm, adaxial 2 nearly distinct;

corolla radially symmetric, lobes reflexed, 1.5 mm, base obtuse;

stamens 4.

sepals 2 mm, adaxial 2 nearly distinct;

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

stamens 4.

2–4, 2 mm.

3–7, 1–1.8 mm.

= 12, 24.

= 12.