Flora of North America species comparison

ascending or erect, 50–120 cm, glaucous.

prostrate or ascending, 2–10 cm, cinereous, retrorsely hairy, hairs pointed.

basal and proximal cauline 45–80(–100) × 15–30(–40) mm, blade obovate to ovate, oblanceolate, or lanceolate, base tapered, margins coarsely dentate, apex obtuse to acute;

cauline 6–9 pairs, sessile or proximals short-petiolate, 50–100 × (8–)20–45 mm, blade ovate to lanceolate, base cordate-clasping or tapered, margins coarsely dentate, apex acute, sometimes obtuse.

not leathery, cinereous, densely retrorsely hairy, hairs pointed;

cauline 5–9 pairs, sessile, 4–14 × 0.5–1.4 mm, blade linear, base tapered, apex mucronate, sometimes acuminate.

interrupted, secund, 30–80 cm, axis glabrous or sparsely glandular-pubescent distally, verticillasters 9–19, cymes 1–5-flowered;

proximal bracts lanceolate, 10–55 × 2–30 mm;

peduncles and pedicels ascending to erect, glandular-pubescent.

continuous, cylindric, 3–15 cm, axis retrorsely hairy to retrorsely cinereous, hairs pointed, verticillasters 1–8, cymes 1 or 2(or 3)-flowered, 1 per node;

proximal bracts linear, 6–15 × 0.6–1.5 mm;

peduncles and pedicels ascending to erect, retrorsely cinereous, hairs pointed, and, sometimes, sparsely glandular-pubescent.

calyx lobes ovate, 4.2–6 × 2–3 mm, glandular-pubescent;

corolla lavender to light pink, rose pink, or light yellow, with reddish nectar guides, strongly bilabiate, ventricose, 21–32 mm, glandular-pubescent externally, glandular-pubescent internally, tube 6–12 mm, length 2–2.2 times calyx lobes, throat gradually to abruptly inflated, constricted or slightly so at orifice, 6–16 mm diam., rounded abaxially;

stamens included, filaments glabrous, pollen sacs explanate, 1.4–1.8 mm, sutures smooth;

staminode 16–19 mm, included, 0.7–0.9 mm diam., tip straight, glabrous;

style 15–20 mm, glabrous.

calyx lobes lanceolate, (3–)4–6 × 0.7–1 mm, narrowly scarious-margined, retrorsely hairy, hairs pointed, and sparsely glandular-pubescent;

corolla blue or violet, lined internally abaxially with reddish violet nectar guides, funnelform, 15–19 mm, sparsely white- or yellowish lanate internally abaxially, tube 6–7 mm, throat gradually inflated, 4–5.5 mm diam., 2-ridged abaxially;

stamens: longer pair reaching orifice, filaments glabrous, pollen sacs opposite, navicular to subexplanate, 0.7–1 mm, sutures papillate;

staminode 8–9 mm, included or reaching orifice, flattened distally, 0.2–0.3 mm diam., tip straight to recurved, distal 6–7 mm pilose, hairs yellowish orange, to 0.7 mm;

style 13–16 mm.

8–13 × 4–7 mm, glabrous.

3.3–4.5 × 2.8–3.6 mm.

= 16.

= 16.