Flora of North America species comparison

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

erect, (13–)19–42 cm, glabrous.

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, glabrous;

basal and proximal cauline 13–57 × 4–19 mm, blade spatulate to oblanceolate, base tapered, apex mucronate, sometimes rounded to obtuse;

cauline 3–7 pairs, sessile, 9–30 × 6–15 mm, blade oblanceolate to ovate, base clasping to cordate-clasping, apex acute to acuminate, sometimes mucronate.

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 or continuous, cylindric, 10–16 cm, axis glabrous, verticillasters (6–)8–12, cymes 2–7-flowered, proximal bracts orbiculate to ovate, 11–18 × 6–14 mm;

peduncles and pedicels glabrous.

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, 4–7 × 1.1–1.9 mm, margins erose, broadly scarious, glabrous;

corolla lavender to lavender-blue, without nectar guides, funnelform, nearly rotate, 11–14 mm, glabrous externally or glandular, glabrous internally, tube 6.5–8 mm, throat gradually inflated, 4–5 mm diam., rounded abaxially;

stamens: 4 prominently exserted (4–5 mm) beyond limb, pollen sacs parallel, 1.2–1.5 mm, sutures smooth;

staminode 6–7 mm, reaching orifice or exserted (adaxially), 0.4–0.5 mm diam., tip recurved, distal 1–2 mm densely villous, hairs golden yellow, to 0.8 mm;

style 12–14 mm.

5–7 × 2–3 mm, glabrous.

5–6 × 4–5 mm.

= 16.