Flora of North America species comparison

ascending or erect, 50–120 cm, glaucous.

erect, 25–90 cm, glabrous, slightly glaucous or not.

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.

basal and cauline, not leathery, glabrous, not glaucous;

basal and proximal cauline 28–145 × 4–30 mm, blade oblong to oblanceolate or elliptic, base tapered, margins entire, apex acute;

cauline 2–4(or 5) pairs, sessile, rarely short-petiolate, 20–135 × 4–31 mm, blade lanceolate, proximals sometimes oblanceolate, base tapered to cordate-clasping, apex acute to 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.

interrupted, secund, 10–56 cm, axis ± glandular-pubescent at least distally, verticillasters 4–12, cymes (1 or)2–6-flowered, 2 per node;

proximal bracts lanceolate, 10–58 × 10–85 mm;

peduncles and pedicels glandular-pubescent, sometimes sparsely so.

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 oblong-ovate, 3.5–5.8 × 1.2–2.1 mm, glandular-pubescent;

corolla blue to purple or violet, with faint reddish purple nectar guides, ventricose, 16–25 mm, ± glandular-pubescent externally, glabrous or sparsely glandular internally, tube 5–8 mm, throat gradually inflated, not constricted at orifice, 6–10 mm diam., rounded abaxially;

stamens included, pollen sacs divergent to nearly opposite, navicular, 0.8–1.4 mm, dehiscing incompletely, connective not splitting, sides sparsely to moderately hispid, hairs white or yellowish, to 0.2 mm, sutures papillate or denticulate, teeth to 0.1 mm;

staminode 9–11 mm, included, 0.4–0.5 mm diam., tip straight, distal 7–9 mm sparsely to moderately villous, hairs yellow, to 1 mm;

style 9–11 mm.

8–13 × 4–7 mm, glabrous.

8–10 × 4–6 mm.

= 16.