Flora of North America species comparison

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

decumbent to ascending, 6–20(–25) cm, retrorsely hairy or puberulent, 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, retrorsely hairy, not glaucous;

basal and proximal cauline 8–40(–60) × 2–7 mm, blade spatulate to oblanceolate, base tapered, margins entire, apex rounded to obtuse or acute;

cauline 2–4 pairs, sessile, 10–38 × 1–6 mm, blade lanceolate, base tapered, 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.

continuous to ± interrupted, secund, (2–)4–9 cm, axis retrorsely hairy proximally, mostly glandular-pubescent distally, verticillasters (3 or)4–8, cymes 1- or 2-flowered, (1 or)2 per node;

proximal bracts linear, 3–26 × 0.5–2.5 mm;

peduncles and pedicels glandular-pubescent, peduncles also usually retrorsely hairy.

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 ovate, 3–4(–5) × 2–2.9 mm, glandular-pubescent;

corolla blue to violet or purple, with reddish purple nectar guides, ventricose, 13–20 mm, glandular-pubescent externally, glabrous internally, tube 4.5–6 mm, throat gradually inflated, not constricted at orifice, 4–6(–8) mm diam., slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 1–1.4 mm, dehiscing incompletely, connective not splitting, sides glabrous, sutures papillate;

staminode 8–10 mm, reaching orifice, 0.5–0.6 mm diam., tip straight, glabrous;

style 11–15 mm.

2.5–4 × 1.8–2.5 mm, glabrous.

7–8 × 6–7 mm.

= 16, 32.