Flora of North America species comparison

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

ascending to erect, 16–60 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 or proximals sometimes puberulent proximally, not glaucous;

basal and proximal cauline 35–110 × 5–22 mm, blade spatulate to oblanceolate, base tapered, margins entire, apex rounded to obtuse;

cauline 3–7 pairs, sessile, 20–95 × 4–16 mm, blade oblanceolate to elliptic or oblong, base tapered, 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, cylindric, 4–13 cm, axis puberulent, verticillasters 3–8, cymes (1 or)2–4-flowered, (1 or)2 per node;

proximal bracts lanceolate, proximals 7–55 × 1–15 mm;

peduncles and pedicels puberulent.

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 to oblanceolate, 3–5.5 × 1.5–2.2 mm, glabrous or sparsely puberulent;

corolla lavender to violet, with violet nectar guides, ventricose, 16–25 mm, glabrous externally, sparsely white-lanate internally abaxially, tube 4–5 mm, throat gradually inflated, not constricted at orifice, 6–8 mm diam., rounded abaxially;

stamens: longer pair reaching orifice, pollen sacs opposite, navicular, 1.2–1.5 mm, dehiscing completely or incompletely, connective splitting or not, sides glabrous, sutures smooth or papillate;

staminode 9–14 mm, exserted, 0.7–1 mm diam., tip straight to recurved, distal 0.5–2 mm sparsely to moderately pilose, hairs yellow, to 0.8 mm;

style 10–14 mm.

2.5–4 × 1.8–2.5 mm, glabrous.

9–12 × 4.5–8 mm.

= 16, 32.