Flora of North America species comparison

ascending to erect, 25–55(–65) cm, retrorsely hairy and glandular-villous proximally, retrorsely hairy and glandular-pubescent distally, glandular hairs sometimes sparse, not glaucous.

ascending to erect, 5–18 cm, puberulent to retrorsely hairy, usually in lines proximally, not glaucous.

basal and cauline, basal often withering by anthesis, not leathery, sparsely to densely pubescent, sometimes also with scattered glandular hairs, abaxially, sparsely pubescent adaxially;

basal and proximal cauline 20–120(–180) × 5–35(–40) mm, blade spatulate to obovate or ovate, base tapered, margins subentire or ± serrate or dentate, apex rounded to obtuse or acute;

cauline 4–8 pairs, sessile, 22–100 × 4–24 mm, blade ovate to lanceolate, base truncate to clasping, margins subentire or ± serrate or dentate, apex acute to acuminate.

deciduous, sometimes persistent, 2–6 pairs, distals seldom distinctly smaller than proximals, petiolate or sessile, (5–)10–42 × 4–15 mm, blade obovate to ovate, elliptic, or lanceolate, base tapered to clasping, margins ± crenulate-serrulate, apex obtuse to acute, glabrous, not glaucous.

interrupted, conic, 5–26(–30) cm, axis sparsely to densely glandular-pubescent, verticillasters 3–8, cymes 2–8(–16)-flowered, 2 per node;

proximal bracts lanceolate, 7–72 × 2–22 mm, margins entire or ± dentate;

peduncles and pedicels ascending, sparsely to densely glandular-pubescent.

continuous, cylindric to ± secund, 1–4 cm, axis glandular-pubescent, verticillasters 2–4, cymes 1-flowered;

proximal bracts ovate to lanceolate, (4–)8–25 × 3–17 mm;

peduncles and pedicels ascending to erect, glandular-pubescent.

calyx lobes ovate to lanceolate, (2–)3–5 × 1–3 mm, sparsely glandular-pubescent;

corolla white, sometimes tinged lavender or blue, with reddish purple nectar guides, tubular to tubular-funnelform, 16–22 mm, glandular-pubescent externally, moderately whitish or yellowish lanate internally abaxially, tube 4–6 mm, throat slightly inflated, 4–7 mm diam., 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular, (0.8–)1–1.2 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 10–12 mm, exserted, 0.2–0.3 mm diam., tip straight to slightly recurved, distal 8–9 mm moderately to densely villous, hairs yellow or golden yellow, to 1.5 mm;

style 12–14 mm.

calyx lobes lanceolate, 8–15 × (1.8–)2.5–3.7 mm, glandular-pubescent;

corolla violet to purple, unlined internally but abaxial ridges usually light violet to whitish, not personate, funnelform, 27–40 mm, glabrous externally, sparsely to moderately white-lanate internally abaxially, tube 5–8 mm, throat 8–11 mm diam.;

stamens included, pollen sacs 1.1–1.3 mm;

staminode 9–16 mm, flattened distally, 0.3–0.4 mm diam., tip straight, glabrous or distal 1–3(–13) mm sparsely to moderately villous, hairs yellow, to 1.3 mm;

style 25–28 mm.

5–7 × 3–5 mm, glabrous.

8–11 × 6–8 mm.

= 16.

= 16.