Flora of North America species comparison

0–15 mm.

0–20 mm.

(25–)50–120 × 1–4 mm;

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

(80–)100–400(–550) × (5–)10–35(–40) mm;

blade oblanceolate or almost linear, margins entire, veins conspicuous, 4 or 5, surfaces glabrous.

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

300–400 mm, glabrous or sparsely hairy, becoming densely so distally.

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, 350–450 mm, loosely flowered;

bracts ovate to deltate, 3–4 mm, length 1.5–2.5 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 1.5–2 mm;

corolla radially symmetric, lobes spreading, 1.5–2 mm, base obtuse;

stamens 4.

ovoid, indehiscent or dehiscence not circumscissile.

2, 2.2–2.6 mm.

1 or 2, 4–5 mm.

= 20.

= 24.