Flora of North America species comparison

ascending to erect, 6–20(–25) cm, retrorsely hairy proximally, glabrous or retrorsely hairy distally, not glaucous.

erect, (10–)30–80 cm, glabrous, not glaucous.

basal and cauline, not leathery, glabrous or ± puberulent;

basal and proximal cauline 15–65 × 1–5(–7) mm, blade narrowly oblanceolate to linear, base tapered, margins entire, apex obtuse to acute;

cauline 2–5 pairs, short-petiolate or sessile, 7–33 × 1–3 mm, blade lanceolate to linear, base sessile to clasping, margins entire, apex obtuse to acute.

basal and cauline, not leathery, glabrous, not glaucous;

basal and proximal cauline 26–140 × 3–19 mm, blade oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 2–5 pairs, sessile, 50–90 × (3–)6–9(–18) mm, blade oblanceolate to lanceolate, base clasping, apex acute.

interrupted, cylindric, 2–11 cm, axis glandular-pubescent, sometimes also retrorsely hairy, verticillasters 2–6, cymes 1–5-flowered, 2 per node;

proximal bracts lanceolate to linear, 9–32 × 1–6 mm, margins entire;

peduncles and pedicels erect, ± glandular-pubescent.

continuous to ± interrupted, secund or cylindric, 5–40 cm, axis glabrous or ± glandular-pubescent, verticillasters (4 or)5–9, cymes 1–5-flowered, 2 per node;

proximal bracts lanceolate, 15–54 × 2–15 mm;

peduncles and pedicels glabrous or glandular-pubescent, peduncles to 11 mm, pedicels 1–10 mm.

calyx lobes ovate to lanceolate, 2.2–4.6 × 1–2.4 mm, glandular-pubescent;

corolla blue to violet, with reddish purple guides, funnelform, 11–17 mm, glandular-pubescent externally, moderately whitish lanate internally abaxially, tube 3–4 mm, throat gradually inflated, 4–6 mm diam., 2-ridged abaxially;

stamens included, pollen sacs divergent to opposite, subexplanate to explanate, 0.6–0.8 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 7–8 mm, reaching orifice, 0.2–0.4 mm diam., tip recurved, distal 0.5–1 mm densely pilose, hairs golden yellow, to 0.8 mm;

style 9–10 mm.

calyx lobes ovate, 3.5–8 × 1.8–3 mm, margins erose, glabrous or glandular-pubescent;

corolla blue to bluish violet, with or without reddish purple nectar guides, ventricose, 17–25(–30) mm, glabrous or glandular-pubescent externally, glabrous or ± glandular-pubescent internally abaxially, tube 5–8 mm, throat gradually inflated, slightly constricted at orifice, 6–8 mm diam., rounded abaxially;

stamens: longer pair reaching orifice or slightly exserted, pollen sacs opposite, navicular, 1.2–1.8 mm, dehiscing incompletely, connective not splitting, sides sparsely to moderately hispid or pubescent, hairs whitish, to 0.3 mm, sutures denticulate, teeth to 0.1 mm;

staminode 12–15 mm, reaching orifice or slightly exserted, 0.4–0.6 mm diam., tip straight to recurved, distal 3–5 mm sparsely villous, hairs yellow, to 1 mm;

style 15–18 mm.

5–7 × 4–5 mm, glabrous.

8–12 × 4–6 mm.

= 16.