Flora of North America species comparison

ascending to erect, 10–90 cm, glaucous or not.

ascending to erect, 7–27 cm, glabrous or ± puberulent distally or at nodes, not glaucous.

basal and proximal cauline 31–90 × 11–20 mm, blade oblanceolate to elliptic, base tapered, margins finely to coarsely dentate, apex rounded to obtuse;

cauline 3–6 pairs, short-petiolate or sessile, (15–)30–90 × 4–30 mm, blade lanceolate to ovate-oblong, base tapered, margins coarsely dentate, distals sometimes entire, apex obtuse or acute.

essentially cauline, basal leaves absent or reduced, ± leathery, glabrous, not glaucous;

basal and proximal cauline 12–90(–105) × 3–23 mm, blade elliptic-lanceolate to oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 2–4 pairs, petiolate or sessile, 35–95(–107) × 11–30 mm, blade elliptic-lanceolate to oblanceolate, base tapered to truncate, apex obtuse to acute.

interrupted, cylindric, (5–)7–34 cm, axis sparsely to densely glandular-pubescent, verticillasters 4–10, cymes 2–4-flowered;

proximal bracts ovate to lanceolate, 5–50 × 2–18 mm;

peduncles and pedicels spreading to ascending, glandular-pubescent.

continuous, ± secund, 3–15 cm, axis glabrous or ± glandular, verticillasters 1–7, cymes 2–8-flowered, 2 per node;

proximal bracts ovate to elliptic, 16–85 × 7–31 mm;

peduncles and pedicels glabrous or ± glandular, peduncles to 15 mm, pedicels 1–3 mm.

calyx lobes ovate, 4.5–8.5 × (2–)2.9–3.2 mm, glandular-pubescent;

corolla white to pink or light lavender to light blue or light violet, with reddish purple nectar guides, strongly bilabiate, ventricose-ampliate, 22–35 mm, glandular-pubescent externally, glandular-pubescent internally, also white-villous abaxially, tube 5–8 mm, length 0.9–1.2 times calyx lobes, throat abruptly inflated, constricted at orifice, 10–18 mm diam., rounded abaxially;

stamens included, filaments of shorter pair glandular-puberulent proximally, pollen sacs navicular to subexplanate, 1.6–2.2 mm, sutures smooth;

staminode 20–22 mm, exserted, 0.4–0.8 mm diam., tip recurved, distal 8–10 mm densely lanate, hairs yellowish or whitish, to 4 mm;

proximal 6–8 mm densely glandular-pubescent;

style 15–18 mm, glabrous.

calyx lobes ovate to lanceolate, 6.5–12 × 2.8–4.5 mm, margins erose, apex acuminate to caudate, ± glandular;

corolla blue to violet, with violet nectar guides, ventricose, 18–33 mm, glabrous externally, glabrous internally, tube 7–9 mm, throat abruptly inflated, slightly constricted at orifice, 7–9 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs divergent to nearly opposite, navicular-sigmoid, (1.8–)2.2–2.6 mm, dehiscing incompletely, connective not splitting, sides sparsely to moderately hispidulous or pubescent, hairs white, to 0.3 mm;

sutures denticulate, teeth to 0.1 mm;

staminode 13–17 mm, included, 0.5–0.9 mm diam., tip straight, glabrous or distal 1–3 mm pubescent, hairs yellow, to 0.5 mm;

style 17–20 mm.

10–14 × 5–8 mm, glabrous.

8–12 × 5–8 mm.

= 16.