Flora of North America species comparison

ascending to erect, 10–40 cm, puberulent or retrorsely hairy proximally, rarely glabrous, glandular-pubescent distally, not glaucous.

ascending to erect, 13–33 cm, ± retrorsely pubescent.

basal and cauline, not leathery, glabrous;

basal and proximal cauline 20–102 × 4–15 mm, blade lanceolate to oblanceolate or spatulate, base tapered, margins serrulate or denticulate, sometimes entire, apex obtuse to acute;

cauline (2 or)3–5 pairs, sessile, 18–50(–70) × 3–14 mm, blade ovate to lanceolate, base tapered to clasping, margins serrulate or denticulate, sometimes entire, apex acute to acuminate.

basal and cauline, not leathery, glabrous or ± retrorsely hairy along margins;

basal and proximal cauline petiolate, 20–90 × (3–)6–12 mm, blade oblanceolate to lanceolate, base tapered, margins sharply serrate-dentate, rarely entire, apex obtuse to acute;

cauline 2–4 pairs, sessile, (20–)30–56 × 3–6 mm, blade oblanceolate, base clasping, margins coarsely serrate-dentate or dentate, apex obtuse.

interrupted or continuous, cylindric, 5–18 cm, axis glandular-pubescent, verticillasters 3–6(–8), cymes 2–5-flowered, 2 per node;

proximal bracts ovate to lanceolate, 6–40 × 2–10 mm, margins entire or serrulate to denticulate;

peduncles and pedicels ascending to erect, puberulent or glandular-pubescent.

interrupted, cylindric, 7–15(–21) cm, axis glandular-pubescent, verticillasters 3–7, cymes (1 or)2–7-flowered, 2 per node;

proximal bracts lanceolate, 18–40 × 2–5 mm;

peduncles and pedicels glandular-pubescent.

calyx lobes ovate to lanceolate, 2–4.5 × 1.5–2.5 mm, glandular-pubescent;

corolla blue to light purple or violet, with reddish purple to bluish purple nectar guides, funnelform, 10–16(–18) mm, glandular-pubescent externally, moderately white-pilose internally abaxially, tube 4–5 mm, throat 3–5 mm diam., 2-ridged abaxially;

stamens included, pollen sacs divergent to opposite, navicular, 0.6–0.8 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth or ± papillate;

staminode 8–10 mm, included or reaching orifice, 0.2–0.3 mm diam., tip straight to slightly recurved, distal 4–5 mm moderately to densely villous, hairs golden yellow, to 1.3 mm;

style 8–11 mm.

calyx lobes lanceolate, 3.8–6 × 1.1–2 mm, glandular-pubescent;

corolla blue to violet or light purple, rarely pink, with or without purple nectar guides, ventricose, 10–15 mm, yellowish lanate internally abaxially, tube 4–6 mm, throat gradually inflated, not constricted at orifice, 4–6 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs parallel, navicular, 1.2–1.5 mm, dehiscing completely, sutures papillate;

staminode 7–10 mm, prominently exserted, 0.4–0.6 mm diam., tip straight to recurved, distal 5–7 mm moderately to densely pilose, hairs orange, to 0.8 mm;

style 6–7 mm.

5–7 × 2–3 mm, glabrous.

5–7 × 4–5 mm.

= 16.