Flora of North America species comparison

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

decumbent to ascending, 2–8 cm, retrorsely hairy, not glaucous.

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;

basal and proximal cauline 15–35 × 4–15 mm, blade lanceolate to elliptic or oblanceolate, base tapered, margins entire or serrulate, apex obtuse to acute;

cauline 3–7 pairs, petiolate, 10–20 × 3–5 mm, blade lanceolate to linear-lanceolate, base tapered to cuneate, margins entire or serrulate, apex obtuse to 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.

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

proximal bracts lanceolate, 10–20 × 4–8 mm, margins entire;

peduncles and pedicels ascending to erect, 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 lanceolate, 5–8 × 0.8–1.2 mm, glandular-pubescent;

corolla bluish lavender to lavender-purple, with violet nectar guides, tubular-funnelform, 12–25 mm, glandular-pubescent externally, densely white-lanate internally abaxially, tube 4–6 mm, throat gradually inflated, 6–8 mm diam., scarcely 2-ridged abaxially;

stamens included, pollen sacs opposite, subexplanate, 1.1–1.3 mm, dehiscing completely, connective splitting, sides sparsely puberulent, sutures smooth;

staminode 14–15 mm, exserted, 0.3–0.4 mm diam., tip slightly recurved, distal 0.8–1 mm sparsely lanate, hairs yellow, to 0.4 mm;

styles 10–15 mm.

2.5–4 × 1.8–2.5 mm, glabrous.

4–7 × 3–5 mm, glabrous.

= 16, 32.