Flora of North America species comparison

erect, (10–)18–90(–130) cm, glabrous proximally, usually sparsely glandular distally, not glaucous.

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

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

basal and proximal cauline 35–140(–170) × 8–24 mm, blade oblanceolate, sometimes lanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 3–6(–11) pairs, short-petiolate or sessile, 28–95(–130) × 4–15 mm, blade oblanceolate to lanceolate, base tapered to clasping, apex acute.

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.

interrupted, secund, (4–)12–38 cm, axis glabrous or glandular-pubescent, verticillasters 4–12, cymes 1–3(–6)-flowered, 2 per node;

proximal bracts lanceolate, (3–)15–75 × (1–)2–22 mm;

peduncles and pedicels glandular-pubescent, sometimes sparsely so.

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.

calyx lobes ovate to lanceolate, 4.5–7.5 × (1.5–)2.1–2.8 mm, glandular-pubescent;

corolla blue to violet or purple, with violet nectar guides, ventricose, 19–28 mm, ± glandular-pubescent externally, glabrous internally, tube 6–10(–11) mm, throat gradually inflated, not constricted at orifice, 7–10 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 1.6–2 mm, dehiscing incompletely, connective not splitting, sides sparsely to moderately hispid or pubescent, hairs white, to 0.2 mm, sutures denticulate, teeth to 0.1 mm;

staminode 13–16 mm, reaching orifice or slightly exserted, 0.6–0.8 mm diam., tip straight, distal 2–3 mm sparsely villous, hairs yellow, to 0.7 mm;

style 14–18 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.

8–12 × 5–6 mm.

5–8 × 3.5–5 mm, glabrous.

= 16.