Flora of North America species comparison

ascending to erect, (20–)30–100 cm, puberulent to pubescent, sometimes glabrous, not glaucous.

ascending to erect, 30–150 cm, glaucous, sometimes not.

basal and cauline, not leathery, puberulent to pubescent, sometimes only along midvein and margins;

basal and proximal cauline 40–150(–230) × 14–50(–70) mm, blade ovate to deltate-ovate, base truncate to tapered, margins serrate-dentate, apex obtuse to acute;

cauline (3–)5–7 pairs, sessile, 25–80(–120) × 15–45(–70) mm, blade oblong to ovate or triangular-ovate, base clasping, margins serrate, apex acute.

basal and proximal cauline 35–80 × 18–30 mm, blade spatulate to ovate or elliptic, base tapered, margins coarsely serrate to coarsely dentate, apex rounded to acute;

cauline 4–7 pairs, sessile, 18–80 × 10–40 mm, blade ovate-oblong to triangular-ovate, base connate-perfoliate, margins finely serrate, apex obtuse to acute or acuminate.

interrupted, narrowly conic, 6–30 cm, axis densely glandular-pubescent, verticillasters 4–10, cymes 5–13-flowered, 2 per node;

proximal bracts ovate to lanceolate, 11–35(–70) × 4–30(–45) mm, margins serrate, sometimes entire;

peduncles and pedicels ascending to erect, densely glandular-pubescent.

interrupted, secund, 16–45 cm, axis glabrous or sparsely glandular-pubescent distally, verticillasters 8–14, cymes 2–6-flowered;

proximal bracts depressed-ovate to ovate or triangular, 12–50 × 15–55 mm;

peduncles and pedicels erect, sparsely glandular-pubescent.

calyx lobes ovate to lanceolate, (2–)3–5 × 0.9–1.6(–1.9) mm, margins narrowly scarious, sparsely to densely glandular-pubescent;

corolla violet to blue or purple, with reddish purple nectar guides, funnelform, 15–22 mm, glandular-pubescent externally, densely white-villous internally abaxially, rarely glabrous, tube 5–6 mm, throat slightly inflated, 5–7 mm diam., 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular, 0.8–1.1 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth or papillate;

staminode 9–12 mm, reaching orifice or slightly exserted, 0.3–0.4 mm diam., tip recurved, distal 1–2 mm densely pilose, hairs yellow, to 1.5 mm;

style 9–12 mm.

calyx lobes ovate, 3–4.2(–5) × 1.5–2.5 mm, glandular-pubescent;

corolla rose to magenta or pinkish lavender, without nectar guides, bilabiate, funnelform to slightly ventricose, 16–20 mm, glandular-pubescent externally, glandular-pubescent internally, tube 5–6 mm, length 1.7–2 times calyx lobes, throat gradually inflated, not constricted at orifice, 4–6 mm diam., rounded abaxially;

stamens included, filaments glabrous, pollen sacs explanate, 1.1–1.5 mm, sutures smooth;

staminode 9–13 mm, included, 0.2–0.3 mm diam., tip straight, glabrous;

style 10–12 mm, glabrous.

4–6 × 2.5–4.5 mm, glabrous.

7–10 × 4–6 mm, glabrous.

= 16.