Flora of North America species comparison

ascending to erect, 30–80 cm, retrorsely hairy and sparsely to densely glandular-villous, not glaucous.

ascending to erect, 11–48 cm, retrorsely hairy or puberulent, hairs pointed, not glaucous.

basal and cauline, not leathery, glabrous or sparsely glandular-lanate along midveins, rarely moderately glandular-lanate;

basal and proximal cauline 20–126 × 4–16 mm, blade spatulate to oblanceolate, lanceolate, spatulate, or elliptic, base tapered, margins entire or serrate to dentate, apex rounded to obtuse or acute;

cauline 5–8(–10) pairs, sessile or short-petiolate, 20–130 × 2–30 mm, blade lanceolate to oblanceolate, base clasping or tapered, margins finely to coarsely serrate or dentate, apex acute to acuminate.

basal and cauline, opposite, puberulent, hairs pointed, sometimes glabrate abaxially, not glaucous;

basal and proximal cauline (12–)25–100 × 6–15(–25) mm, blade spatulate to oblanceolate, base tapered, margins entire, apex rounded to obtuse or acute;

cauline 2–4 pairs, sessile or proximals short-petiolate, 24–70 × 7–20 mm, blade elliptic or oblanceolate to lanceolate or oblong, base tapered to cordate-clasping, margins entire, apex obtuse to acute.

interrupted, conic, 6–37 cm, axis glandular-pubescent to glandular-lanate, verticillasters (3 or)4–8, cymes 2–11(–15)-flowered, 2 per node;

proximal bracts lanceolate to linear, 8–60 × 1–6 mm, margins entire or ± serrate to dentate;

peduncles and pedicels ascending, glandular-pubescent to glandular-lanate.

interrupted, cylindric, 8–20 cm, axis glandular-pubescent, verticillasters 3–7, cymes 1–4-flowered, 2 per node;

proximal bracts lanceolate, 13–45 × 4–12 mm;

peduncles and pedicels erect, glandular-pubescent.

calyx lobes ovate to lanceolate, 4–7 × 1.5–2.3 mm, glandular-pubescent;

corolla lavender or purplish, with or without faint violet nectar guides, bilabiate, personate, tubular, 20–26(–28) mm, glandular-pubescent externally, moderately to densely white-villous internally abaxially, tube 6–7 mm, throat slightly inflated, 6–8 mm diam., 2-ridged abaxially;

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

staminode 13–16 mm, exserted, 0.6–0.7 mm diam., tip straight, distal 11–14 mm moderately to densely villous, hairs yellowish, to 1.2 mm;

style 16–18 mm.

calyx lobes lanceolate, 8–10 × 1.4–2.6 mm, glandular-pubescent;

corolla blue to lavender or violet, without nectar guides, ampliate, 24–30 mm, glandular-pubescent externally, glabrous internally, tube 8–10 mm, throat gradually inflated, 6–8 mm diam., 2-ridged abaxially;

stamens included, filaments glabrous, pollen sacs parallel, 1.6–1.9 mm, distal 1/3 indehiscent, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 13–15 mm, included, 0.4–0.5 mm diam., distal 5–8 mm densely pilose, hairs yellow, to 1.3 mm;

style 22–25 mm.

6–9 × 5–6 mm, glabrous.

7–11 × 5–6 mm.

= 16.