Flora of North America species comparison

erect, (40–)50–95(–120) cm, glabrous.

ascending to erect, 22–60 cm, retrorsely hairy and glandular-pubescent or glandular-villous, not glaucous.

basal and cauline, glabrous;

basal and proximal cauline 30–160 × 6–50 mm, blade spatulate to obovate, base tapered, apex rounded to obtuse or acute;

cauline 4–8 pairs, sessile, 18–90(–110) × 15–50 mm, blade spatulate to orbiculate, base clasping, apex rounded to obtuse.

basal and cauline, basal sometimes withering by anthesis, not leathery, sparsely to densely pubescent, usually also sparsely glandular-hairy, abaxially, glabrous or sparsely pubescent adaxially;

basal and proximal cauline 20–95 × 11–28 mm, blade spatulate to obovate or ovate, base tapered, margins subentire to ± serrate, apex rounded to obtuse;

cauline 4 or 5, sessile or proximals short-petiolate, 35–95 × 11–32 mm, blade ovate to lanceolate or oblanceolate, base tapered to truncate or clasping, margins ± serrate or dentate, apex obtuse to acute.

interrupted, cylindric, 12–30(–40) cm, axis glabrous, verticillasters 3–7(–9), cymes 2–4-flowered;

proximal bracts ovate to elliptic or orbiculate, (9–)16–83 × (9–)16–54 mm;

peduncles and pedicels glabrous.

interrupted, conic, (4–)8–20 cm, axis sparsely to densely glandular-pubescent, verticillasters 3–8, cymes 5–16-flowered, 2 per node;

proximal bracts lanceolate, 7–50 × 2–20 mm, margins entire or serrate;

peduncles and pedicles spreading to ascending, sparsely to densely glandular-pubescent.

calyx lobes ovate to lanceolate, 7–11 × 2.5–4 mm, margins entire, rarely erose, herbaceous or narrowly scarious, glabrous;

corolla lavender to blue or pinkish blue, with magenta nectar guides, ampliate, 35–48 mm, glabrous externally, glabrous internally, tube 10–13 mm, throat abruptly inflated, 15–18 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, 2.1–2.6 mm, sutures papillate;

staminode 16–21 mm, included or reaching orifice, 2–2.6 mm diam., tip recurved to coiled, distal 1–2 mm sparsely villous, hairs golden yellow, to 0.5 mm;

style 19–30 mm.

calyx lobes ovate, rarely lanceolate, (1.5–)2–3.5 × 0.9–2.2 mm, sparsely glandular-pubescent;

corolla lavender to purple, with reddish purple nectar guides, tubular to tubular-funnelform, 15–24 mm, glandular-pubescent externally, ± whitish lanate internally abaxially, tube 4–6 mm, throat slightly inflated, 4–7 mm diam., 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular, 0.9–1.1 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 12–18 mm, exserted, 0.3–0.5 mm diam., tip straight to slightly recurved, distal 8–9 mm ± villous, hairs yellow or golden yellow, to 1.5 mm;

style 12–17 mm.

16–20(–25) × 8–15 mm.

4–7 × 3–5 mm, glabrous.

= 16.