Flora of North America species comparison

ascending to erect, (15–)35–60 cm, retrorsely hairy, hairs pointed, at least proximally, not glaucous.

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

cauline, opposite, glabrous, glaucous;

cauline 4–8 pairs, short-petiolate or sessile, (15–)20–60 × (2–)6–13(–20) mm, blade elliptic or proximals oblanceolate to lanceolate, base tapered, margins entire, apex obtuse to acute.

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.

continuous, cylindric, 5–22 cm, axis glabrous or retrorsely hairy, verticillasters 4–8(–11), cymes 1- or 2(–4)-flowered, 2 per node;

proximal bracts lanceolate to elliptic, 8–66 × 1–13 mm;

peduncles and pedicels ascending to erect, peduncles glabrous or sparsely retrorsely hairy, pedicels papillate or glandular distally.

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 lanceolate, 4–6(–7) × 1.4–2.6 mm, glabrous;

corolla lavender to light violet or violet, with or without faint lavender nectar guides, ventricose-ampliate, (20–)22–25(–30) mm, glabrous externally, glabrous internally, tube 6–8 mm, throat gradually inflated, 7–9 mm diam., 2-ridged abaxially;

stamens: longer pair exserted, filaments glabrous, pollen sacs parallel, 1.5–1.9(–2.1) mm, distal 1/2–2/3 indehiscent, sides glabrous or hispidulous to lanate, hairs white, to 0.5 mm, sutures denticulate, teeth to 0.2 mm;

staminode 12–14 mm, reaching orifice or exserted, 0.6–0.8 mm diam., glabrous;

style 18–20 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.

7–11 × 3.5–4.5 mm.

8–13 × 5–8 mm.

= 32.