Flora of North America species comparison

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

ascending to erect, 25–40 cm, retrorsely hairy proximally, glandular-pubescent distally, 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, basal sometimes withering by anthesis, not leathery, glabrous or retrorsely hairy proximally;

basal and proximal cauline 25–70(–85) × 5–23 mm, blade ovate to lanceolate, base tapered, margins entire, apex acute;

cauline 3–6 pairs, petiolate or sessile, 20–90(–110) × 2–18 mm, blade oblanceolate to lanceolate, base tapered, margins entire, 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.

interrupted, narrowly conic, 3–10 cm, axis sparsely glandular-pubescent, verticillasters 3–6, cymes 2–10-flowered, 2 per node;

proximal bracts lanceolate to linear, 3–40 × 0.5–4 mm, margins entire;

peduncles and pedicels ascending to erect, sparsely 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 ovate to lanceolate, 3.5–7 × 1–2 mm, glandular-pubescent;

corolla blue to light violet, with reddish purple nectar guides, funnelform, 14–19 mm, glandular-pubescent or glabrescent externally, glabrous or sparsely white- or yellow-villous internally abaxially, tube 5–6 mm, throat gradually inflated, 4–9 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular, 0.9–1.1 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 15–16 mm, included, 0.3–0.4 mm diam., tip straight to slightly recurved, distal 6–10 mm pilose, hairs golden, to 1.5 mm;

style 13–16 mm.

8–10 × 4–6 mm.

7–10 × 2.5–4 mm, glabrous.

= 16.