Flora of North America species comparison

ascending, (8–)10–40 cm, glabrous or retrorsely hairy, not glaucous.

ascending to erect, (9–)15–35 cm, glabrous or slightly retrorsely hairy proximally, glandular-pubescent distally.

essentially cauline, basal usually poorly developed, not leathery, glabrous;

basal and proximal cauline 10–40(–65) × 1–6 mm, blade oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 3–5 pairs, sessile or proximals short-petiolate, 12–60 × 2–5(–7) mm, blade oblanceolate to lanceolate or linear, base tapered, margins entire, apex acute.

basal and cauline, not leathery, glabrous abaxially, retrorsely hairy adaxially, sometimes only along midvein;

basal and proximal cauline petiolate, 32–65(–80) × 1–6(–9) mm, blade lanceolate to linear, base tapered, margins entire or obscurely serrate, apex obtuse to acute;

cauline 3–7 pairs, sessile, 30–45(–70) × 1–5(–8) mm, blade lanceolate to linear, base tapered to slightly clasping, margins entire or obscurely serrate, apex acute.

interrupted, cylindric, 1–14 cm, axis glabrous or ± puberulent at axils, verticillasters (1 or)2–6, cymes (1–)3–7-flowered, 2 per node;

proximal bracts lanceolate to linear, 8–30(–45) × 1–7 mm, margins entire;

peduncles and pedicels erect, glabrous.

interrupted, cylindric, (4–)6–15 cm, axis glandular-pubescent, verticillasters 3–6(–9), cymes (1 or)2–5-flowered, 2 per node;

proximal bracts lanceolate to linear, 7–20(–45) × 1–4(–8) mm;

peduncles and pedicels glandular-pubescent.

calyx lobes obovate to ovate, 1–1.8 × 0.7–1.1 mm, apex truncate to cuspidate, glabrous;

corolla violet to blue or purple, without nectar guides, funnelform, 7–9(–11) mm, glabrous externally, moderately yellowish or white-pilose internally abaxially, tube 3–4 mm, throat slightly inflated, 2–3 mm diam., 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, explanate, 0.3–0.4(–0.5) mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 4–6 mm, included, 0.3–0.4 mm diam., tip straight, distal 0.5–1 mm sparsely to moderately pilose, hairs yellow, to 0.4 mm;

style 5–6 mm.

calyx lobes elliptic-lanceolate, 4–6 × 1–1.6 mm, glandular-pubescent;

corolla violet to blue or bluish lavender, with reddish purple nectar guides, weakly bilabiate, funnelform, 10–16 mm, glabrous or sparsely white-villous internally abaxially, tube 5–7 mm, throat gradually inflated, not constricted at orifice, 5–6 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, explanate, 0.7–0.9 mm, dehiscing completely, sutures smooth;

staminode 6–8 mm, included, 0.5–0.9 mm diam., tip straight to recurved, distal 5–7 mm densely pilose, hairs yellow, to 0.8 mm;

style 4–5 mm.

2.5–4 × 1.8–2.5 mm, glabrous.

7–10 × 3–5 mm.

= 16, 32.