Flora of North America species comparison

ascending to erect, (15–)20–42 cm, retrorsely hairy or puberulent, not glaucous.

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

essentially cauline, basal absent or poorly developed, not leathery, ± puberulent;

cauline (4 or)5–8 pairs, sessile, (20–)30–65 × (2–)4–10(–20) mm, blade ovate to lanceolate, base tapered, margins entire, apex obtuse to acute.

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, 5–14 cm, axis glandular-pubescent, verticillasters (2 or)3–6, cymes 2–4(–8)-flowered, 2 per node;

proximal bracts lanceolate to linear, 7–46 × 1–10(–20) mm, margins entire;

peduncles and pedicels ascending to erect, 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 lanceolate, 5–8 × 1.2–2.5 mm, glandular-pubescent;

corolla blue to dark blue, purple, or violet, with reddish purple nectar guides, bilabiate, not personate, funnelform, 16–23 mm, glandular-pubescent externally, moderately yellowish lanate internally abaxially, tube 4.5–6 mm, throat slightly inflated, 4–6 mm diam., 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular to subexplanate, 0.8–1.3 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 10–12 mm, included, 0.3–0.4 mm diam., tip straight, distal 1 mm densely pilose or lanate, hairs yellow, to 1.4 mm, remaining distal 4–5 mm sparsely pilose, hairs yellow, to 0.5 mm;

style 11–14 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.

5–8 × 3.5–5 mm, glabrous.

5–7 × 4–5 mm.

= 16.