Flora of North America species comparison

ascending to erect, (30–)40–100 cm, viscid glandular-pubescent, not glaucous.

ascending to erect, (15–)20–42 cm, retrorsely hairy or puberulent, not glaucous.

basal and cauline, opposite, viscid glandular-pubescent, not glaucous;

basal and proximal cauline 25–120(–260) × 7–20(–65) mm, blade elliptic to lanceolate, base tapered, margins entire, subentire, or irregularly serrate to dentate, apex acute to acuminate;

cauline 4–10 pairs, sessile, 32–80(–120) × 12–45 mm, blade ovate to obovate, elliptic, or lanceolate, base tapered to cordate-clasping, margins entire or subentire to irregularly serrate to dentate, apex obtuse to acute or acuminate.

essentially cauline, basal absent or poorly developed, not leathery, ± puberulent;

cauline (4 or)5–8 pairs, sessile, (20–)30–65 × (2–)4–10(–20) mm, blade ovate to lanceolate, base tapered, margins entire, apex obtuse to acute.

interrupted, cylindric, (5–)8–31 cm, axis viscid glandular-pubescent, verticillasters 3–7, cymes (1 or)2–8-flowered, 2 per node;

proximal bracts ovate, 18–60 × 11–44 mm;

peduncles and pedicels ascending to erect, viscid glandular-pubescent.

interrupted or continuous, cylindric, 5–14 cm, axis glandular-pubescent, verticillasters (2 or)3–6, cymes 2–4(–8)-flowered, 2 per node;

proximal bracts lanceolate to linear, 7–46 × 1–10(–20) mm, margins entire;

peduncles and pedicels ascending to erect, glandular-pubescent.

calyx lobes lanceolate, 9–15 × 2.3–3.8 mm, viscid glandular-pubescent;

corolla lavender to bluish lavender or purple, with dark violet nectar guides, ampliate, (28–)30–40 mm, glandular-pubescent externally, sparsely to moderately white-pubescent internally abaxially, tube 9–11 mm, throat gradually inflated, 12–15 mm diam., rounded abaxially;

stamens included, filaments glabrous, pollen sacs parallel, 1.6–2.2 mm, distal 1/2 indehiscent, sides glabrous, sutures denticulate, teeth to 0.2 mm;

staminode 22–26 mm, exserted, 0.8–1 mm diam., glabrous, rarely distal 2–4 mm sparsely pubescent, hairs yellow, to 0.4 mm;

style 20–26 mm.

calyx lobes lanceolate, 5–8 × 1.2–2.5 mm, glandular-pubescent;

corolla blue to dark blue, purple, or violet, with reddish purple nectar guides, bilabiate, not personate, funnelform, 16–23 mm, glandular-pubescent externally, moderately yellowish lanate internally abaxially, tube 4.5–6 mm, throat slightly inflated, 4–6 mm diam., 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular to subexplanate, 0.8–1.3 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 10–12 mm, included, 0.3–0.4 mm diam., tip straight, distal 1 mm densely pilose or lanate, hairs yellow, to 1.4 mm, remaining distal 4–5 mm sparsely pilose, hairs yellow, to 0.5 mm;

style 11–14 mm.

9–13 × 5–6.5 mm.

5–8 × 3.5–5 mm, glabrous.

= 16.