Flora of North America species comparison

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

decumbent to ascending, 8–26 cm, glabrous, 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, ± leathery or not, glabrous, not glaucous;

basal and proximal cauline (15–)20–110 × (3–)6–14(–25) mm, blade oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline (1 or)2 or 3 pairs, sessile or proximals short-petiolate, 13–55 × 5–14 mm, blade oblanceolate to lanceolate, base tapered, apex obtuse to 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.

continuous, cylindric to secund, 2–13 cm, axis glabrous or glandular-pubescent, verticillasters 2 or 3(–5), cymes 1–7-flowered, 2 per node;

proximal bracts lanceolate to oblong, 10–45 × 4–18 mm, apex acute;

peduncles and pedicels glabrous or ± glandular-pubescent, peduncles to 7 mm, pedicels 1–4 mm.

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 lanceolate, 5.5–8 × 1.5–2 mm, margins erose, glabrous or ± glandular-pubescent;

corolla blue to violet, without nectar guides, ventricose, 18–25 mm, glabrous externally, glabrous internally, tube 5–7 mm, throat gradually inflated, not constricted at orifice, 6–10 mm diam., 2-ridged abaxially;

stamens: longer pair exserted, pollen sacs divergent, navicular, 1.3–1.8 mm, dehiscing incompletely, proximal 1/3 indehiscent, connective not splitting, sides moderately pubescent to villous, hairs white, to 0.7 mm, sutures denticulate, teeth to 0.1 mm;

staminode 10–12 mm, included, 0.5–0.6 mm diam., tip straight, glabrous or distal 1–3 mm sparsely pilose, hairs yellow or white, to 0.5 mm;

style 14–17 mm.

8–12 × 5–6 mm.

5–7.5 × 4–5 mm.

= 16.

= 16.