Flora of North America species comparison

ascending to erect, 10–30(–35) cm, retrorsely hairy proximally, glandular-pubescent distally.

ascending to erect, 25–40 cm, retrorsely hairy proximally, glandular-pubescent distally, not glaucous.

basal and cauline, not leathery, glabrous, puberulent, or retrorsely hairy;

basal and proximal cauline petiolate, (15–)30–60(–100) × (1–)2–5(–7) mm, blade lanceolate to linear, base tapered, margins entire, apex obtuse to acute;

cauline 2–6 pairs, sessile, (25–)40–80 × 2–7 mm, blade lanceolate to linear, base tapered to slightly clasping, margins entire or obscurely denticulate, apex acute to acuminate.

basal and cauline, basal sometimes withering by anthesis, not leathery, glabrous or retrorsely hairy proximally;

basal and proximal cauline 25–70(–85) × 5–23 mm, blade ovate to lanceolate, base tapered, margins entire, apex acute;

cauline 3–6 pairs, petiolate or sessile, 20–90(–110) × 2–18 mm, blade oblanceolate to lanceolate, base tapered, margins entire, apex acute.

continuous or interrupted, cylindric or slightly secund, (5–)7–23 cm, axis glandular-pubescent, verticillasters 3–8, cymes 2–4-flowered, 2 per node;

proximal bracts lanceolate to linear, 18–100 × 2–12 mm;

peduncles and pedicels glandular-pubescent.

interrupted, narrowly conic, 3–10 cm, axis sparsely glandular-pubescent, verticillasters 3–6, cymes 2–10-flowered, 2 per node;

proximal bracts lanceolate to linear, 3–40 × 0.5–4 mm, margins entire;

peduncles and pedicels ascending to erect, sparsely glandular-pubescent.

calyx lobes ovate to lanceolate, (6–)7–9 × 1–2 mm, densely glandular-pubescent;

corolla violet to lilac or pinkish blue, with magenta or violet nectar guides, weakly bilabiate, tubular-funnelform, (16–)18–22(–24) mm, moderately white-pilose internally abaxially, tube 4–6 mm, throat gradually inflated, not constricted at orifice, 7–9 mm diam., rounded abaxially;

stamens included, pollen sacs divergent, navicular, 1.2–1.5 mm, dehiscing incompletely, connective not splitting, sutures papillate;

staminode 13–16 mm, reaching orifice or exserted, 0.6–0.9 mm diam., tip recurved, distal 10–15 mm moderately to densely villous, hairs orangish, to 2.5 mm;

style 11–14 mm.

calyx lobes ovate to lanceolate, 3.5–7 × 1–2 mm, glandular-pubescent;

corolla blue to light violet, with reddish purple nectar guides, funnelform, 14–19 mm, glandular-pubescent or glabrescent externally, glabrous or sparsely white- or yellow-villous internally abaxially, tube 5–6 mm, throat gradually inflated, 4–9 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular, 0.9–1.1 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 15–16 mm, included, 0.3–0.4 mm diam., tip straight to slightly recurved, distal 6–10 mm pilose, hairs golden, to 1.5 mm;

style 13–16 mm.

(6–)8–10 × 3–4 mm.

7–10 × 2.5–4 mm, glabrous.

= 16.