Flora of North America species comparison

ascending to erect, (10–)20–65 cm, glabrous or sparsely retrorsely hairy distally, not glaucous.

ascending to erect, (2–)5–70(–90) cm, glabrous or retrorsely hairy, not glaucous.

basal and cauline, not leathery, glabrous;

basal and proximal cauline 28–160(–235) × 8–25(–35) mm, blade oblanceolate to elliptic, base tapered, margins entire, apex obtuse to acute;

cauline 2–5 pairs, sessile or proximals short-petiolate, 10–130 × 3–35 mm, blade oblong to ovate or lanceolate, base truncate to clasping, margins entire, apex obtuse to acute.

basal and cauline, not leathery, glabrous or puberulent;

basal and proximal cauline (30–)55–90(–150) × 5–20(–40) mm, blade spatulate to obovate or elliptic, base tapered, margins entire, rarely denticulate, apex rounded to obtuse or acute;

cauline 2–5(–7) pairs, sessile or proximals short- to long-petiolate, 15–90(–130) × 2–25(–38) mm, blade usually lanceolate, proximals sometimes oblanceolate, base tapered to clasping, margins entire, rarely serrate or dentate, apex acute, sometimes obtuse.

continuous or interrupted, cylindric, (1–)2–11(–27) cm, axis glabrous or sparsely retrorsely hairy, verticillasters 1–3(or 4), cymes (2–)4–13-flowered, 2 per node;

proximal bracts lanceolate, (5–)16–66 × (1–)4–19 mm, margins entire;

peduncles and pedicels erect, glabrous.

interrupted, cylindric, 3–27 cm, axis moderately glandular-pubescent, verticillasters 2–7, cymes (1 or)2–8-flowered, 2 per node;

proximal bracts lanceolate, 15–55(–80) × 2–15(–28) mm, margins entire or ± serrate to dentate;

peduncles and pedicels erect, glandular-pubescent.

calyx lobes oblanceolate to lanceolate, (4–)5–9 × 1.4–3.5 mm, glabrous;

corolla blue to purple or violet, without nectar guides, tubular-funnelform, 14–21 mm, glabrous externally, moderately white- or yellowish pilose internally abaxially, tube 5–6 mm, throat slightly inflated to slightly ventricose, 4–7 mm diam., 2-ridged abaxially;

stamens included, pollen sacs divergent, saccate, 0.7–1.2 mm, dehiscing incompletely, distal 1/5–1/4 indehiscent, connective not splitting, sides glabrous, sutures papillate;

staminode 7–9 mm, included, 0.4–0.7 mm diam., tip straight to slightly recurved, distal 1–2 mm densely pilose to lanate, hairs golden yellow, to 1.4 mm, medial 2–4 mm sparsely lanate;

style 8–10 mm.

calyx lobes ovate to obovate, ovate-oblong, or lanceolate, 3.2–7.5 × 0.9–2.6 mm, margins erose or lacerate, apex acuminate to short-caudate or long-acuminate, glandular-pubescent;

corolla light blue to violet, bluish purple, or pinkish blue, rarely light yellow or whitish, with reddish purple nectar guides, tubular-funnelform, 7–20 mm, glandular-pubescent externally, moderately white-lanate internally abaxially, tube 4–5 mm, throat slightly inflated, 3–5(–6) mm diam., 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular to slightly saccate, 0.6–1.2 mm, dehiscing completely or incompletely, distal 1/5 or less sometimes indehiscent, connective splitting or not, sides glabrous, sutures smooth or papillate;

staminode 7–9 mm, reaching orifice or slightly exserted, 0.3–0.4 mm diam., tip straight to slightly recurved, distal 1–3 mm ± pilose, hairs yellow, to 1.2 mm;

style 8–12 mm.

5–7 × 3–4 mm, glabrous.

4–8 × 2–5 mm, glabrous.

= 16, 32.

= 48.