Flora of North America species comparison

ascending to erect, (15–)20–40 cm, glaucous.

ascending to erect, 7–25 cm, retrorsely hairy or puberulent, not glaucous.

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.

basal and cauline, not leathery, puberulent or retrorsely hairy, not glaucous;

basal and proximal cauline 15–80 × 0.8–2 mm, blade linear, base tapered, margins entire, apex obtuse to acute;

cauline 1–3 pairs, sessile, 10–75 × 0.5–1.5 mm, blade linear, base tapered, apex acute.

± 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.

continuous, secund, 3–10 cm, axis glandular-pubescent, verticillasters 2–6, cymes 1- or 2(–4)-flowered, 2 per node;

proximal bracts linear, 10–56 × 0.5–1.5 mm;

peduncles and pedicels glandular-pubescent.

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.

calyx lobes lanceolate, 4.5–5.5 × 1.8–2.5 mm, glabrous to sparsely glandular;

corolla blue to bluish violet, with reddish purple nectar guides, funnelform, 13–16 mm, glabrous externally, glabrous internally, tube 5–6 mm, throat gradually inflated, not constricted at orifice, 4.5–5.5 mm diam., rounded abaxially;

stamens included, pollen sacs divergent to opposite, navicular, 1.1–1.5 mm, dehiscing incompletely, connective not splitting, sides moderately hirsute, hairs white, to 0.5 mm, sutures denticulate, teeth to 0.1 mm;

staminode 8–9 mm, included, 0.9–1.1 mm diam., tip straight, distal 6–7 mm densely pubescent, hairs yellowish orange, to 0.9 mm;

style 8–10 mm.

8–10 × 4–6 mm.

6–9(–14) × 4–6 mm.

= 16.