Flora of North America species comparison

ascending to erect, 40–115 cm, glabrous or retrorsely hairy, not glaucous.

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

basal and cauline, basal sometimes withering by anthesis, not leathery, glabrous or puberulent;

basal and proximal cauline 40–150 × 7–48 mm, blade oblanceolate to lanceolate, base tapered, margins entire or ± serrate, apex obtuse to acute;

cauline 3–7 pairs, sessile or proximals sometimes petiolate, 18–128 × 8–28 mm, blade lanceolate, proximals sometimes oblanceolate, base clasping, sometimes tapered, margins entire or ± serrate, apex 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, narrowly conic, (3–)8–20 cm, axis glabrous or retrorsely hairy and sparsely glandular-pubescent, verticillasters 2–6, cymes (2–)4–11-flowered, 2 per node;

proximal bracts lanceolate to linear, 8–38 × 1–3 mm, margins entire;

peduncles and pedicels spreading or ascending, glabrous or retrorsely hairy and sparsely 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, 3–6 × 1.5–2.1 mm, glabrous or glandular-pubescent;

corolla pale lavender to violet, with reddish purple nectar guides, ventricose, 15–22 mm, glandular-pubescent externally, sparsely to moderately white-lanate internally abaxially, tube 5–6 mm, throat abruptly inflated, 5–8 mm diam., slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 1–1.2 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 10–12 mm, exserted, 0.4–0.5 mm diam., tip straight to slightly recurved, distal 5–7 mm moderately to densely pubescent, hairs yellow, to 2.3 mm;

style 12–15 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.

5–8 × 3.5–5 mm, glabrous.

8–12 × 4–6 mm.

= 16.