Flora of North America species comparison

(20–)30–40(–60) cm, glabrous or scabrous proximally.

ascending to erect, 4–10(–17) cm, retrorsely hairy or puberulent, not glaucous.

(7–)10–25 pairs, (3–)5–30(–40) × 0.5–1(–2.5) mm, blade base tapered, margins glabrous or scabrous, apex acuminate to mucronate.

persistent, 5–10 pairs, distals usually distinctly smaller than proximals, short-petiolate or sessile, (5–)10–20(–30) × 4–11 mm, blade elliptic to orbiculate, ovate, or spatulate, base tapered, margins entire or serrulate, apex rounded to obtuse or acute, glabrous or obscurely puberulent, not glaucous.

6–15 cm, verticillasters 6–10, cymes 1–3-flowered;

proximal bracts linear, 6–27(–33) × 0.3–1.5 mm;

peduncles and pedicels glabrous or scabrous.

continuous, ± secund, 1–6 cm, axis retrorsely hairy proximally, retrorsely hairy and glandular-pubescent distally, verticillasters (1 or)2–7, cymes 1-flowered;

proximal bracts round to ovate or lanceolate, 3–12 × 1–6 mm, margins entire;

peduncles and pedicels ascending to erect, glandular-pubescent, sometimes also puberulent.

calyx lobes ovate, 1.5–3.5 × 1–1.5 mm;

corolla pink (limb milky pink or milky white), lined internally abaxially with reddish purple nectar guides, salverform, (14–)16–22(–28) mm, glandular-pubescent internally in 2 lines on abaxial surface, tube 3–4 mm, throat 3–5 mm diam.;

stamens included, pollen sacs 0.5–0.6 mm;

staminode 7–9 mm;

style 8–10 mm.

calyx lobes lanceolate to linear, 7–12(–14) × 2.5–4.3 mm, glandular-pubescent;

corolla lavender to bluish lavender, violet, or purple, essentially unlined internally but abaxial ridges usually lavender or white, nearly personate, funnelform, 20–45 mm, glabrous externally, sparsely to moderately white-villous internally abaxially, tube (4–)6–12 mm, throat 7–12 mm diam.;

stamens included, pollen sacs 0.9–1.6 mm;

staminode 7–14 mm, slightly flattened distally, 0.1–0.2 mm diam., tip straight, distal 4–7 mm sparsely to densely villous, hairs whitish, to 1 mm;

style 19–26 mm.

6–9 × 3–5 mm.

8–13 × 5–8 mm.