Flora of North America species comparison

erect, 25–90 cm, glabrous, slightly glaucous or not.

ascending, 5–15(–24) cm, glabrous, not glaucous.

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

basal and proximal cauline 28–145 × 4–30 mm, blade oblong to oblanceolate or elliptic, base tapered, margins entire, apex acute;

cauline 2–4(or 5) pairs, sessile, rarely short-petiolate, 20–135 × 4–31 mm, blade lanceolate, proximals sometimes oblanceolate, base tapered to cordate-clasping, apex acute to acuminate.

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

basal and proximal cauline (12–)20–60(–100) × (2–)4–12 mm, blade oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 2–4 pairs, sessile, (10–)15–45 × 1–4(–6) mm, blade lanceolate to linear, base tapered, apex acute.

interrupted, secund, 10–56 cm, axis ± glandular-pubescent at least distally, verticillasters 4–12, cymes (1 or)2–6-flowered, 2 per node;

proximal bracts lanceolate, 10–58 × 10–85 mm;

peduncles and pedicels glandular-pubescent, sometimes sparsely so.

continuous, secund, (1–)3–15 cm, axis ± glandular-pubescent, verticillasters 3–7, cymes 1(or 2)-flowered, 2 per node;

proximal bracts oblanceolate to lanceolate or linear, 9–50 × 1.5–4 mm;

peduncles and pedicels glandular-pubescent, sometimes sparsely so.

calyx lobes oblong-ovate, 3.5–5.8 × 1.2–2.1 mm, glandular-pubescent;

corolla blue to purple or violet, with faint reddish purple nectar guides, ventricose, 16–25 mm, ± glandular-pubescent externally, glabrous or sparsely glandular internally, tube 5–8 mm, throat gradually inflated, not constricted at orifice, 6–10 mm diam., rounded abaxially;

stamens included, pollen sacs divergent to nearly opposite, navicular, 0.8–1.4 mm, dehiscing incompletely, connective not splitting, sides sparsely to moderately hispid, hairs white or yellowish, to 0.2 mm, sutures papillate or denticulate, teeth to 0.1 mm;

staminode 9–11 mm, included, 0.4–0.5 mm diam., tip straight, distal 7–9 mm sparsely to moderately villous, hairs yellow, to 1 mm;

style 9–11 mm.

calyx lobes ovate, (3–)4–6.5(–7) × 2.5–3.5 mm, glandular-pubescent;

corolla blue to violet, without nectar guides, ventricose, 17–24 mm, glandular-pubescent externally, glabrous internally, tube 5–8 mm, throat gradually inflated, not constricted at orifice, 5–8 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs divergent, navicular, (0.8–)1–1.4 mm, dehiscing incompletely, connective not splitting, sides hispid, hairs white, to 0.3 mm, sutures denticulate, teeth to 0.1 mm;

staminode 10–12 mm, included, 0.2–0.4 mm diam., tip straight, distal 6–8 mm moderately to densely pilose, hairs yellow or yellow-orange, to 1 mm;

style 10–12 mm.

8–10 × 4–6 mm.

8–10.5 × 4.5–7 mm.