Flora of North America species comparison

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

32–75 cm.

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.

cauline 7–11 pairs, 16–50 × 10–28 mm, base tapered to truncate, apex obtuse to acute.

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.

6–18 cm, verticillasters 2–4, cymes (1 or)2 or 3(or 4)-flowered;

proximal bracts ovate to lanceolate, 4–10 × 3–10 mm;

peduncles and pedicels retrorsely hairy.

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 ovate to lanceolate, 3–5 × 1.3–2.2 mm;

corolla with lavender or violet nectar guides, 20–25 mm, sparsely white-lanate internally abaxially, tube 6–7 mm, throat 8–10 mm diam.;

pollen sacs 1.1–1.4 mm;

staminode 17–19 mm, distal 2–4 mm sparsely villous, hairs white, to 2 mm;

style 14–15 mm.

5–7 × 2–3 mm, glabrous.

7–9 × 4–7 mm.

= 16.