Flora of North America species comparison

ascending to erect, 6–26 cm, retrorsely hairy or glabrate, not glaucous.

ascending to erect, (15–)30–120 cm, glabrous, sometimes glabrous proximally, glandular-pubescent distally, not glaucous.

basal and cauline, ± leathery or not, glabrous or puberulent proximally on petiole and along midvein abaxially;

basal and proximal cauline 10–60 × 3–18 mm, blade spatulate to elliptic, base tapered, margins entire, sometimes ± serrulate distally, apex rounded to obtuse or acute;

cauline 1–3 pairs, sessile, 14–35 × 2–8 mm, blade lanceolate, sometimes oblanceolate, base truncate, margins entire, rarely ± serrulate distally, apex obtuse to acute.

basal and cauline, not leathery, glabrous;

basal and proximal cauline 30–250 × 7–50 mm, blade elliptic to lanceolate, base tapered, margins serrate to dentate, apex obtuse to acute;

cauline 2–5 pairs, short-petiolate or sessile, (10–)20–75(–110) × 5–30(–38) mm, blade oblong to triangular-ovate, base truncate to cordate-clasping distally, margins serrate to dentate, apex obtuse to acute.

interrupted, cylindric, 1–13 cm, axis moderately glandular-pubescent, verticillasters 1–5, cymes 2–5-flowered, 2 per node;

proximal bracts lanceolate, 8–30 × 2–7 mm, margins entire;

peduncles and pedicels ascending to erect, glandular-pubescent.

interrupted, cylindric, 2–24 cm, axis glandular-pubescent, verticillasters 2–7, cymes 3–11-flowered, 2 per node;

proximal bracts triangular to lanceolate, 6–50 × 1–22 mm, margins entire or ± serrate;

peduncles and pedicels ascending to erect, glandular-pubescent.

calyx lobes ovate to lanceolate, 2.6–4.8 × 1–1.8 mm, glandular-pubescent;

corolla light blue to light purple, with violet nectar guides, funnelform, 10–14 mm, glandular-pubescent externally, moderately white- or yellowish lanate internally abaxially, tube 4–5 mm, throat slightly inflated, 3.5–4.5 mm diam., 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular to subexplanate, 0.6–0.8 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 6–7 mm, included, 0.3–0.4 mm diam., tip recurved, distal 0.5–1.5 mm densely pilose, hairs yellow, to 0.7 mm;

style 8–10 mm.

calyx lobes ovate to ovate-oblong or lanceolate, 4–10 × (1–)1.5–2.5 mm, glandular-pubescent;

corolla lavender to purple or violet, with reddish purple nectar guides, ventricose to ventricose-ampliate, 20–30 mm, glandular-pubescent externally, sparsely to densely white-lanate internally, tube 6–7 mm, throat abruptly inflated, 8–10 mm diam., 2-ridged abaxially;

stamens included, pollen sacs opposite, subexplanate, 1.2–1.5 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth or papillate;

staminode 21–26 mm, exserted, 0.3–0.4 mm diam., tip straight to recurved, distal 6–10 mm sparsely to moderately lanate, hairs white or yellow, to 3 mm;

style 16–19 mm.

4–6 × 2.5–4 mm, glabrous.

5–9 × 3.5–5 mm, glabrous.

= 16.