Flora of North America species comparison

ascending to erect, 35–80 cm, puberulent or retrorsely hairy proximally, retrorsely hairy and sparsely glandular-pubescent distally, not glaucous.

decumbent to ascending, 8–18(–25) cm, glabrous, not glaucous.

basal and cauline, basal sometimes withering by anthesis, not leathery, glabrous or puberulent along midveins and, sometimes, on proximal parts of blade;

basal and proximal cauline 55–170 × 15–60 mm, blade triangular-ovate to cordate or lanceolate, base tapered, margins crenate to sharply serrate, apex obtuse to acute;

cauline 4–6 pairs, sessile, 66–105 × 12–48 mm, blade ovate to lanceolate, proximals sometimes lyrate, base truncate to broadly clasping, margins crenate to sharply serrate, apex acute.

basal and cauline, leathery or not, glabrous, not glaucous;

basal and proximal cauline (15–)30–65(–95) × 2–12(–20) mm, blade oblanceolate to elliptic, rarely spatulate, base tapered, margins entire, apex obtuse to acute, rarely rounded;

cauline 1–3 pairs, sessile, 20–70(–85) × 5–12 mm, blade oblanceolate to lanceolate or linear, base tapered to truncate, margins undulate, apex acute.

interrupted, narrowly conic, (6–)10–28 cm, axis puberulent and glandular-pubescent, verticillasters 4–7, cymes (3–)5–12-flowered, 2 per node;

proximal bracts lanceolate, 56–130 × 23–55 mm, margins sharply serrate;

peduncles and pedicels ascending to erect, puberulent and glandular-pubescent.

continuous, secund, (3–)5–19 cm, axis glabrous, verticillasters 2–6, cymes 2–4-flowered, 2 per node;

proximal bracts lanceolate, rarely elliptic or oblanceolate, 11–55 × 5–11 mm;

peduncles and pedicels glabrous or ± glandular, peduncles to 8 mm, pedicels 1–4 mm.

calyx lobes ovate to lanceolate, 3.5–5 × 1.2–2.1 mm, glandular-pubescent;

corolla lavender to violet or purple, with violet nectar guides, funnelform to ventricose-ampliate, 28–35 mm, glandular-pubescent externally, moderately white-lanate internally abaxially, tube 7–8 mm, throat abruptly inflated, 9–16 mm diam., 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular, 1.3–1.5 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 15–18 mm, included, 0.4–0.6 mm diam., tip straight, distal 13–15 mm ± pilose, hairs yellow, to 2 mm;

style 17–20 mm.

calyx lobes ovate to obovate, (3.5–)4–7 × 1.8–2(–3) mm, apex acuminate, sometimes caudate, glabrous or sparsely glandular;

corolla blue to violet or lavender, with or without faint purple nectar guides, ventricose, 14–22 mm, glabrous externally, glabrous internally, tube 5–8 mm, throat gradually inflated, not constricted at orifice, 4–6.5 mm diam., rounded abaxially;

stamens: longer pair reaching orifice, pollen sacs divergent, navicular, 1.2–1.7 mm, dehiscing incompletely, proximal 1/5 indehiscent, connective not splitting, sides pilose, hairs white, to 0.3 mm, sutures papillate or denticulate, teeth to 0.1 mm;

staminode 8–12 mm, included, 0.4–0.6 mm diam., tip straight, distal 5–6 mm sparsely pilose to villous, hairs yellow, to 0.5 mm;

style 9–12 mm.

7–10 × 4–5 mm, glabrous.

5.5–8 × 3.5–4.5 mm.

= 16.