Flora of North America species comparison

rhizomelike.

decumbent, ascending, or weakly erect, 4–18 cm, retrorsely hairy, not glaucous.

erect, (50–)80–120 cm, glaucous or not.

cauline, not leathery, glabrate, retrorsely hairy, or puberulent;

cauline 2–4 pairs, petiolate or sessile, 7–28 × 3–12 mm, blade spatulate to oblanceolate, base tapered to clasping, margins entire, apex rounded or obtuse to acute.

basal and proximal cauline 40–100 × 8–50 mm, blade oblanceolate to elliptic, base tapered, margins coarsely dentate, apex obtuse to acute;

cauline 5–8 pairs, sessile, 32–120 × 10–45 mm, blade ovate to lanceolate, base sessile, proximals usually auriculate-clasping, distal ones usually cordate-clasping, margins dentate to serrate, apex acute to acuminate.

interrupted or continuous, ± secund, 1–3 cm, axis ± glandular-pubescent, verticillasters 1 or 2(or 3), cymes 1- or 2-flowered, 1 or 2 per node;

proximal bracts lanceolate, 17–23 × 4–10 mm, margins entire;

peduncles and pedicels ascending to erect, retrorsely hairy and glandular-pubescent.

interrupted, cylindric, 20–80 cm, axis glabrous or glandular-pubescent distally, verticillasters 9–16, cymes (1–)3–8(–13)-flowered;

proximal bracts ovate to lanceolate, 15–35 × 4–25 mm;

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

calyx lobes lanceolate, 6–10 × 1.3–2 mm, glandular-pubescent;

corolla lavender or bluish lavender to lavender-purple, without nectar guides, bilabiate, not personate, tubular-funnelform, 15–20 mm, glandular-pubescent externally, densely white-lanate internally abaxially, tube 4–6 mm, throat gradually inflated, 5–6 mm diam., prominently 2-ridged abaxially;

stamens included, pollen sacs opposite, subexplanate, 0.7–0.9 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 8–9 mm, included, 0.3–0.4 mm diam., tip recurved, distal 4–5 mm moderately to densely lanate, hairs yellow, to 1 mm;

style 11–12 mm.

calyx lobes round to ovate or lanceolate, 3.5–5.5 × 2.5–3.2 mm, glabrous or glandular-pubescent;

corolla lavender, blue, pink, or purple, with reddish purple nectar guides, strongly bilabiate, ventricose-ampliate, 24–34 mm, glandular-pubescent externally, glabrous or sparsely white-lanate internally abaxially, glandular-pubescent adaxially, tube 7–9 mm, length 1.6–2 times calyx lobes, throat abruptly inflated, not constricted at orifice, 8–14 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, filaments of shorter pair glandular-puberulent proximally, pollen sacs navicular, 1.8–2.4 mm, sutures papillate or denticulate, papillae or teeth to 0.1 mm;

staminode 15–16 mm, included, 0.5–0.9 mm diam., tip straight, glabrous distally or distal 1–2 mm sparsely pilose, hairs yellow, to 0.5 mm [5–6 mm moderately pilose, hairs yellow, to 1.5 mm], proximal 1–2 mm glandular-pubescent;

style 15–19 mm, glabrous.

6–8 × 4–5 mm, glabrous.

9–14 × 6–8 mm, glabrous.

= 16.

= 16.