Flora of North America species comparison

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

prostrate to ascending, to 1 cm (to 15 cm diam.), scabrous or puberulent.

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.

essentially basal, not leathery, scabrous;

basal and proximal cauline sessile, 6–15(–22) × 0.6–1.3(–1.5) mm, blade linear, 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.

essentially absent, verticillasters 1, cymes 1(or 2)-flowered, 1 per node;

proximal bracts linear, 5–10 × 0.6–1 mm;

peduncles and pedicels glandular-pubescent and scabrous.

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, 3.5–5.5 × 0.8–1.5 mm, glandular-pubescent and scabrous;

corolla lavender to blue or violet, without nectar guides, funnelform, 11–15 mm, yellowish or white-villous internally abaxially, tube 5–6 mm, throat gradually inflated, not constricted at orifice, 4.5–6 mm diam., slightly 2-ridged abaxially;

stamens: longer pair reaching orifice or exserted, pollen sacs widely divergent or opposite, navicular, 0.7–0.9 mm, dehiscing completely, sutures papillate;

staminode 7–9 mm, exserted, 0.4–0.5 mm diam., tip straight to slightly recurved, distal 4–7 mm densely pilose, hairs orange, to 0.8 mm;

style 7–8 mm.

7–12 × 4–6 mm, glabrous.

2.5–3.5 × 2.5–3 mm.