Flora of North America species comparison

ascending to erect, 14–40(–60) cm, glabrous.

ascending to erect, (18–)30–80 cm, puberulent or retrorsely hairy proximally, puberulent or glandular-pubescent distally, not glaucous.

basal and cauline, glabrous;

basal and proximal cauline 40–65(–110) × 8–20(–30) mm, blade obovate, base tapered, apex obtuse to acute, sometimes mucronate;

cauline 2–4 pairs, sessile, (9–)12–60 × 7–26 mm, blade lanceolate to ovate or elliptic, base tapered to clasping or cordate-clasping, apex obtuse to acute, sometimes mucronate.

deciduous, 8–13 pairs, short-petiolate or sessile, 23–130 × 3–20 mm, blade lanceolate, rarely linear, base tapered, margins entire or remotely serrate, apex acute to acuminate, rarely obtuse, glabrous or puberulent to pubescent, not glaucous.

interrupted or ± continuous, secund, sometimes cylindric, 5–23 cm, axis glabrous, verticillasters 4–8, cymes 1–3(or 4)-flowered;

proximal bracts ovate to lanceolate, (3–)7–38 × (1–)2–18 mm;

peduncles and pedicels glabrous, peduncles to 28 mm.

interrupted, ± secund, (3–)6–15(–28) cm, axis sparsely to moderately glandular-pubescent, verticillasters 3–7, cymes 2–7-flowered;

proximal bracts lanceolate to linear, (5–)15–80 × (1–)2–8(–20) mm;

peduncles and pedicels spreading or ascending, glandular-pubescent.

calyx lobes ovate to lanceolate, 5–6.7(–7.2) × 2–3(–3.7) mm, margins entire or erose, broadly scarious, glabrous;

corolla lavender to violet, blue, pinkish blue, or white, with or without reddish violet nectar guides, tubular-funnelform, 17–20(–22) mm, glabrous externally, sparsely white-villous internally abaxially or glabrous, tube 5–8 mm, throat gradually inflated, 5–6 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, 1.1–1.6 mm, sutures papillate;

staminode 8–9 mm, reaching orifice or slightly exserted, 0.6–1 mm diam., tip strongly recurved, distal 3–4 mm sparsely to densely villous, hairs mostly along margins, yellowish, to 1 mm;

style 10–12 mm.

calyx lobes lanceolate, 7–16 × 2–4 mm, glandular-pubescent;

corolla lavender to purple, unlined internally or lined with faint lavender nectar guides abaxially, nearly personate, funnelform, 35–46 mm, glabrous externally, moderately white-lanate internally abaxially, tube 8–14 mm, throat 8–12 mm diam.;

stamens included, pollen sacs 1.1–1.8 mm;

staminode 10–13 mm, flattened distally, 0.2–0.3 mm diam., tip straight, glabrous;

style 30–40 mm.

9–12 × 5–7 mm.

10–14 × 5–7 mm.

3.5–5 mm.