Flora of North America species comparison

ascending to erect, 15–40(–65) cm, glabrous, not glaucous.

ascending to erect, (5–)9–40 cm, glabrous.

basal and cauline, not leathery, glabrous;

basal and proximal cauline (23–)40–90(–120) × 6–14(–24) mm, blade spatulate to elliptic, base tapered, margins entire, apex rounded to obtuse or acute;

cauline 3–6 pairs, sessile or proximals short- to long-petiolate, 24–115 × 4–15 mm, blade oblanceolate to lanceolate, base tapered to truncate or clasping, margins entire, apex obtuse to acute.

basal and cauline, glabrous;

basal and proximal cauline 15–140 × 2–27 mm, blade spatulate to oblanceolate or lanceolate, base tapered, apex obtuse to acute, sometimes rounded or mucronate;

cauline 2–4(–6) pairs, sessile, (11–)18–85 × (3–)5–28(–32) mm, blade ovate to lanceolate, base clasping or cordate-clasping, apex acuminate to acute, sometimes mucronate.

interrupted, cylindric, 6–15 cm, axis glabrous, verticillasters 2–6, cymes 3–11-flowered, 2 per node;

proximal bracts lanceolate, 8–50 × 1–8 mm, margins entire;

peduncles and pedicels erect, glabrous.

± interrupted, cylindric, (2–)5–20 cm, axis glabrous, verticillasters (2–)4–10, cymes 2–5-flowered;

proximal bracts orbiculate to ovate or lanceolate, 19–70 × 7–28 mm;

peduncles and pedicels glabrous, peduncles to 3 mm.

calyx lobes ovate to lanceolate, 3–5.5 × 1.2–2.1 mm, apex acute to short-caudate, glabrous;

corolla white or lavender, without nectar guides, funnelform, 10–15 mm, glabrous externally, moderately yellow- or white-lanate internally abaxially, tube 4–5 mm, throat slightly inflated, 3–4 mm diam., 2-ridged abaxially;

stamens: longer pair reaching orifice or slightly exserted, pollen sacs opposite, navicular, 0.6–0.8 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 6–7 mm, included, 0.3–0.4 mm diam., tip straight, distal 0.5–3 mm moderately pilose, hairs yellow, to 0.8 mm, rarely glabrous;

style 7–8 mm.

calyx lobes ovate to lanceolate, 3–7.5 × (0.8–)1.2–1.8 mm, margins entire or erose, narrowly scarious, glabrous;

corolla blue to violet, with reddish violet nectar guides, tubular-funnelform, (10–)13–15(–18) mm, glabrous externally, glabrous or sparsely white-villous internally abaxially, tube 4–6 mm, throat gradually inflated, 4–6 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice to slightly exserted, pollen sacs opposite, 0.7–1.2 mm, sutures papillate;

staminode 8–11 mm, reaching orifice or slightly exserted, 0.8–1.5 mm diam., tip strongly recurved, distal 3–4 mm densely villous, hairs golden yellow, to 1.5 mm, hairs on proximal part of staminode mostly along margins;

style 8–10 mm.

4–7 × 3–4 mm, glabrous.

9–13 × 5–8 mm.

= 32.