Flora of North America species comparison

ascending to erect, 20–50(–65) cm, glabrous or retrorsely hairy, not glaucous.

ascending to erect, 5–15(–23) cm, retrorsely hairy or puberulent, hairs pointed.

basal and cauline, basal often poorly developed, not leathery, glabrous;

basal and proximal cauline 20–75 × 2–5(–7) mm, blade narrowly elliptic to linear, base tapered, margins entire, apex obtuse to acute;

cauline 5–8 pairs, sessile or proximals long-petiolate, 15–75 × 2–8 mm, blade lanceolate to linear, base tapered, margins entire, apex acute.

not leathery, puberulent proximally, hairs pointed, sometimes only along margins, glabrous distally;

cauline 2–7 pairs, petiolate or sessile, 7–17(–25) × 0.7–1.3(–1.7) mm, blade linear, rarely oblanceolate, base tapered, apex acute to mucronate.

interrupted or continuous, cylindric, 3–25 cm, axis glandular-pubescent, verticillasters 2–6(–10), cymes 1–7-flowered, 2 per node;

proximal bracts lanceolate, 6–55 × 1–8 mm, margins entire;

peduncles and pedicels erect, glandular-pubescent.

continuous, secund, 2–8 cm, axis retrorsely hairy, hairs pointed, and, sometimes, sparsely glandular-pubescent, verticillasters 2–10, cymes 1–3(or 4)-flowered, 1(or 2) per node;

proximal bracts linear, 11–21 × 1–1.4 mm;

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

calyx lobes obovate to ovate or lanceolate, 1.5–3 × 0.7–1.5 mm, glandular-pubescent;

corolla violet to light blue, pink, or light purple, with or without pink or purple nectar guides, tubular to tubular-funnelform, 8–10 mm, glandular-pubescent externally, moderately yellow-pilose internally abaxially, tube 3–4 mm, throat slightly inflated, 2–3 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular to subexplanate, 0.4–0.5 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 4–6 mm, included, 0.3–0.4 mm diam., tip straight, distal 0.3–0.5 mm sparsely pilose, hairs yellow, to 0.4 mm;

style 7–8 mm.

calyx lobes lanceolate, 4–5.5 × 1–1.6 mm, broadly scarious-margined, apex acuminate to caudate, sparsely glandular-pubescent, sometimes glabrate;

corolla blue to bluish violet, lined internally abaxially with reddish violet nectar guides, funnelform, 12–15(–18) mm, glabrous or sparsely white-villous internally abaxially, tube 5–6 mm, throat gradually inflated, 6–7 mm diam., 2-ridged abaxially;

stamens: longer pair reaching orifice or exserted, filaments glabrous, pollen sacs widely divergent or opposite, navicular, 0.8–1.1 mm, sutures papillate;

staminode 6–8 mm, included, flattened distally, 0.3–0.4 mm diam., tip straight to recurved, distal 6–7 mm densely pilose, hairs golden yellow, to 1.1 mm;

style 11–13 mm.

3.5–5 × 2–3 mm, glabrous.

4.5–7 × 2.8–3.5 mm.

= 32.