Flora of North America species comparison

ascending to erect, (7–)9–16(–25) cm, glabrous or ± glandular-pubescent distally, not glaucous.

ascending to erect, 12–35 cm, glabrous.

basal and cauline, or basal absent or reduced, ± leathery, glabrous except for antrorsely-scabrous margins, not glaucous;

basal and proximal cauline 16–85 × 3–9 mm, blade spatulate to lanceolate, base tapered, margins entire, apex rounded to obtuse or acute;

cauline 2–4 pairs, sessile, 24–55 × 2–5 mm, blade lanceolate, proximals sometimes spatulate, base truncate, apex obtuse to acute.

basal and cauline, glabrous;

basal and proximal cauline 20–110 × 14–40(–60) mm, blade spatulate to obovate, base tapered, apex rounded, mucronate, or retuse;

cauline 1–3 pairs, sessile, 20–58 × 8–23 mm, blade ovate to obovate or lanceolate, base tapered to cordate-clasping, apex obtuse to mucronate or retuse.

continuous, cylindric to secund, (1–)2–7 cm, axis glandular-pubescent, verticillasters 1–7, cymes 1–4-flowered, 2 per node;

proximal bracts lanceolate, rarely oblanceolate, 9–26 × 1–3 mm;

peduncles and pedicels ascending to erect, glandular-pubescent.

continuous, sometimes interrupted, cylindric, 3–15 cm, axis glabrous, verticillasters 5–10, cymes 2–6-flowered;

proximal bracts ovate to lanceolate, 11–38 × 5–13 mm;

peduncles and pedicels glabrous, rarely obscurely glandular distally.

calyx lobes obovate to elliptic, (4–)5–6.5 × 3–4 mm, margins erose or lacerate, glandular-pubescent, sometimes only proximally;

corolla blue to violet or purple, with reddish purple nectar guides, ventricose, 14–25 mm, glabrous externally, glabrous or sparsely white-lanate internally abaxially, tube 2–3 mm, throat abruptly inflated, not constricted at orifice, 6–7 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, navicular to subexplanate, 1.2–1.4 mm, dehiscing completely, sides glabrous, rarely sparsely pilose, hairs white, to 0.8 mm near connective, sutures smooth or obscurely papillate;

staminode 10–15 mm, included or reaching orifice, 0.6–1 mm diam., tip straight, distal 3–6 mm moderately to densely pubescent, hairs golden yellow, to 0.6 mm (hairs scattered proximally);

style 10–13 mm.

calyx lobes ovate to lanceolate, 4.5–8 × 1.8–2.4 mm, margins erose, broadly scarious, glabrous rarely obscurely glandular-pubescent proximally or along margins;

corolla blue to violet, rarely pink, with or without reddish or purple nectar guides, tubular-funnelform, 16–20(–22) mm, obscurely glandular externally or glabrous, sparsely white-villous internally abaxially or glabrous, tube 6–7 mm, throat gradually inflated, 5–6 mm diam., rounded or slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, 0.8–1.4 mm, sutures papillate;

staminode 8–10 mm, included or reaching orifice, 0.4–1 mm diam., tip strongly recurved, distal 3–4 mm moderately to densely pubescent, hairs golden yellow, to 0.7 mm;

style 8–10 mm.

6–9 × 4–7 mm.

8–12 × 6–8 mm.