Flora of North America species comparison

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

ascending to erect, (15–)20–40 cm, 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.

glabrous or obscurely scabrous, especially along margins, glaucous;

basal and proximal cauline (30–)50–75 × 7–14 mm, blade oblanceolate, base tapered, margins entire, apex obtuse to acute, sometimes mucronate;

cauline 2–4 pairs, sessile, 25–70(–90) × 4–15(–25) mm, blade lanceolate, base tapered, margins entire, 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.

± interrupted, ± secund, 5–26 cm, axis glabrous, verticillasters 5 or 6(–10), cymes 3–7(–13)-flowered;

proximal bracts lanceolate, 10–54 × 3–16 mm;

peduncles and pedicels spreading to ascending, glabrous.

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, 3–6(–7) × 1.9–2.6 mm, margins entire or erose, glabrous;

corolla violet or reddish violet to lavender, with red or reddish purple nectar guides, bilaterally symmetric, bilabiate, tubular-funnelform, 13–17(–20) mm, glabrous externally or buds and young flowers sometimes with sessile glands distally, glabrous internally, tube 5–7 mm, throat gradually inflated, 6–7 mm diam., rounded or slightly 2-ridged abaxially;

stamens included, pollen sacs navicular, 1–1.3 mm, sutures smooth or papillate;

staminode 7–8 mm, flattened distally, 0.5–0.6 mm diam., tip recurved, distal 1–3 mm sparsely papillate, papillae golden yellow or reddish yellow, to 0.2 mm;

style 10–12 mm.

8–10 × 4–6 mm.

8–10 × 4–6 mm.

= 16.