Flora of North America species comparison

20–40 mm.

0–20 mm.

30–200 × 3–7 mm;

blade linear or narrowly lanceolate, margins entire, rarely toothed, veins conspicuous or not, abaxial surface villous, adaxial glabrous or sparsely villous.

(30–)50–250 × (5–)15–70 mm;

blade lanceolate to elliptic, margins entire, veins conspicuous, laterals branching from base, surfaces glabrous or hairy.

100–500 mm, hairy, hairs antrorse, long and short.

(40–)50–300 mm, glabrous or hairy.

greenish or brownish, 80–150 mm, densely flowered, flowers in whorls or pairs;

bracts almost linear, 15–30 mm, length 2–12 times sepals.

brownish or greenish, (25–)80–500 mm, loosely flowered, rachis visible between flowers;

bracts broadly ovate, 2–2.5 mm, length 0.8–1.2 times sepals.

sepals 2.7–3.7 mm;

corolla bilaterally symmetric, lobes reflexed, adaxials 1.4–2.3 mm, laterals symmetric, base deeply cordate;

stamens 4, connective elongated, apex acute.

sepals 2–2.5 mm;

corolla radially symmetric, lobes reflexed, 1–1.5 mm, base obtuse;

stamens 4.

2, 2.5–2.9 mm.

2–4, 2–2.5 mm.

= 20.

= 24.