Flora of North America species comparison

ascending to erect, (30–)60–100 cm, slightly glaucous or not.

ascending to erect, 2–6(–8) cm, pubescent or densely retrorsely hairy.

basal and proximal cauline 20–165 × 12–50 mm, blade ovate to lanceolate, base tapered, margins finely to coarsely dentate, apex obtuse to acute;

cauline 4–7 pairs, sessile or proximals short-petiolate, 45–90 × 22–76 mm, blade ovate to triangular, base tapered or sessile on proximals, auriculate-clasping to connate-perfoliate on distal ones, margins finely to coarsely dentate, apex acute.

basal and cauline, not leathery, retrorsely hairy;

basal and proximal cauline petiolate, 8–30 × 2–9 mm, blade spatulate to oblanceolate, base tapered, margins entire, apex rounded to obtuse or acute;

cauline (0 or)1–3 pairs, sessile, 14–23 × 1–4 mm, blade oblanceolate to linear, not arcuate, base tapered, margins entire, apex acute.

interrupted or continuous, secund, (6–)12–48 cm, axis glabrous, verticillasters 4–13, cymes 1–3(–6)-flowered;

proximal bracts ovate (connate-perfoliate) or lanceolate (auriculate-clasping), (9–)16–55 × 10–60 mm;

peduncles and pedicels ascending to erect, glabrous or glandular-pubescent.

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

proximal bracts oblanceolate to lanceolate or linear, 13–24 × 1–4 mm;

peduncles and pedicels retrorsely hairy, sometimes sparsely glandular-pubescent.

calyx lobes ovate, 3–5.5 × 2–3.2 mm, glabrous or glandular-pubescent;

corolla rose pink, with reddish purple nectar guides, strongly bilabiate, ventricose, (18–)25–34 mm, glandular-pubescent externally, glandular-pubescent internally, tube 6–9 mm, length 1.6–2 times calyx lobes, throat gradually inflated, ± constricted at orifice, 7–10 mm diam., rounded abaxially;

stamens: longer pair reaching orifice, filaments of shorter pair glandular-puberulent proximally, pollen sacs explanate, 1.5–2 mm, sutures smooth;

staminode 11–17 mm, included, 0.2–0.4 mm diam., tip straight to recurved, glabrous or distal 1–2 mm sparsely to moderately lanate, hairs yellow, to 1 mm;

style 20–25 mm, glabrous.

calyx lobes lanceolate, 5–8.5 × 1–2.1 mm, retrorsely hairy, sometimes sparsely glandular-pubescent;

corolla light blue to blue, lavender, or violet, without nectar guides, funnelform, 14–20 mm, glabrous or sparsely white-lanate internally abaxially, tube 6–8 mm, throat gradually inflated, not constricted at orifice, 4–7 mm diam., slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 0.9–1.2 mm, dehiscing completely, sutures papillate;

staminode 9–11 mm, included or reaching orifice, 0.5–1.1 mm diam., tip straight to recurved, distal 5–7 mm moderately pubescent to lanate, hairs yellow or yellow-orange, to 1.5 mm;

style 9–12 mm.

7–12 × 4–6 mm, glabrous.

4–6.5 × 4–5 mm.