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.

ascending to erect, 28–90 cm, glabrous, ± 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, glabrous, ± glaucous;

basal and proximal cauline 35–120(–150) × 8–30 mm, blade obovate to oblanceolate or elliptic, base tapered, margins entire, sometimes undulate, apex obtuse;

cauline 3–6 pairs, sessile or proximals sometimes short- to long-petiolate, (20–)30–120 × 6–20(–29) mm, blade oblanceolate to lanceolate or elliptic, base truncate to clasping, sometimes tapered, margins sometimes undulate, apex obtuse to 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, 8–48 cm, axis glabrous;

verticillasters 5–8(–17), cymes 1–4-flowered, 2 per node;

proximal bracts lanceolate, 10–65 × 2–15 mm;

peduncles and pedicels glabrous.

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 lanceolate, (4–)4.5–9(–10) × 2.1–3.4(–3.8) mm, glabrous;

corolla blue to bluish violet, with reddish violet nectar guides, ventricose, (20–)25–32 mm, glabrous externally, glabrous internally, tube 7–11 mm, throat abruptly inflated, slightly constricted at orifice, 8–12 mm diam., 2-ridged abaxially;

stamens: longer pair reaching orifice or exserted, pollen sacs divergent, sigmoid, 2–2.5 mm, dehiscing incompletely, proximal 1/4 indehiscent, connective not splitting, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 16–19 mm, included or reaching orifice, 0.6–0.9 mm diam., tip straight to recurved, distal 5–7 mm ± pilose, hairs yellow, to 1 mm;

style (17–)19–23 mm.

7–10 × 4–5 mm, glabrous.

8–10 × 5–6 mm.

= 16.