Flora of North America species comparison

ascending to erect, (15–)30–120 cm, glabrous, sometimes glabrous proximally, glandular-pubescent distally, not glaucous.

ascending to erect, (11–)20–60 cm, ± puberulent proximally, glabrous distally, not glaucous.

basal and cauline, not leathery, glabrous;

basal and proximal cauline 30–250 × 7–50 mm, blade elliptic to lanceolate, base tapered, margins serrate to dentate, apex obtuse to acute;

cauline 2–5 pairs, short-petiolate or sessile, (10–)20–75(–110) × 5–30(–38) mm, blade oblong to triangular-ovate, base truncate to cordate-clasping distally, margins serrate to dentate, apex obtuse to acute.

basal and cauline, not leathery, proximals ± puberulent, distals glabrous, not glaucous;

basal and proximal cauline (24–)40–90(–120) × 6–20(–30) mm, blade obovate, base tapered, margins entire, apex obtuse to acute;

cauline 3–5 pairs, sessile, (25–)35–70 × 8–23 mm, blade ovate to lanceolate or elliptic, base tapered to clasping, apex acute, rarely obtuse.

interrupted, cylindric, 2–24 cm, axis glandular-pubescent, verticillasters 2–7, cymes 3–11-flowered, 2 per node;

proximal bracts triangular to lanceolate, 6–50 × 1–22 mm, margins entire or ± serrate;

peduncles and pedicels ascending to erect, glandular-pubescent.

interrupted, secund, 7–21 cm, axis glabrous, verticillasters 3–6, cymes 1- or 2(or 3)-flowered, 2 per node;

proximal bracts ovate to lanceolate, 5–28 × 2.5–24 mm;

peduncles and pedicels glabrous, peduncles to 26 mm, pedicels 1–8(–12) mm.

calyx lobes ovate to ovate-oblong or lanceolate, 4–10 × (1–)1.5–2.5 mm, glandular-pubescent;

corolla lavender to purple or violet, with reddish purple nectar guides, ventricose to ventricose-ampliate, 20–30 mm, glandular-pubescent externally, sparsely to densely white-lanate internally, tube 6–7 mm, throat abruptly inflated, 8–10 mm diam., 2-ridged abaxially;

stamens included, pollen sacs opposite, subexplanate, 1.2–1.5 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth or papillate;

staminode 21–26 mm, exserted, 0.3–0.4 mm diam., tip straight to recurved, distal 6–10 mm sparsely to moderately lanate, hairs white or yellow, to 3 mm;

style 16–19 mm.

calyx lobes ovate, 4.5–7 × 2.5–3 mm, apex acute to acuminate, glabrous;

corolla blue to violet, without nectar guides, ventricose, (20–)24–30(–32) mm, glabrous externally, glabrous internally, tube 8–11 mm, throat gradually inflated, not constricted at orifice, 8–10(–12) mm diam., 2-ridged abaxially;

stamens: longer pair reaching orifice, pollen sacs divergent, rarely nearly opposite, sigmoid, 1.8–2.4(–2.8) mm, dehiscing incompletely, proximal 1/5 indehiscent, connective not splitting, sides sparsely hispid, hairs white, to 0.3 mm, sutures denticulate, teeth to 0.1 mm;

staminode 14–16 mm, included, 0.6–1 mm diam., tip straight to recurved, distal 0.5–1 mm moderately pilose, hairs yellow, to 0.8 mm, remaining distal 3–4 mm with scattered yellow hairs;

style 18–22 mm.

5–9 × 3.5–5 mm, glabrous.

8–14 × 6–10 mm.

= 16.

= 16.