Flora of North America species comparison

ascending to erect, 6–20(–25) cm, retrorsely hairy proximally, glabrous or retrorsely hairy distally, not glaucous.

erect, 10–31 cm, retrorsely hairy, not glaucous.

basal and cauline, not leathery, glabrous or ± puberulent;

basal and proximal cauline 15–65 × 1–5(–7) mm, blade narrowly oblanceolate to linear, base tapered, margins entire, apex obtuse to acute;

cauline 2–5 pairs, short-petiolate or sessile, 7–33 × 1–3 mm, blade lanceolate to linear, base sessile to clasping, margins entire, apex obtuse to acute.

basal and cauline, not leathery, glabrous or retrorsely hairy primarily along midvein and margins;

basal and proximal cauline 14–75 × 4–16 mm, blade ovate to lanceolate or elliptic, base tapered, margins entire or ± serrate distally, apex obtuse to acute;

cauline 3–5 pairs, sessile or proximals short-petiolate, 15–45 × 2–8 mm, blade oblanceolate to lanceolate, base tapered, margins entire or ± serrate or ± dentate, primarily distally, apex obtuse to acute.

interrupted, cylindric, 2–11 cm, axis glandular-pubescent, sometimes also retrorsely hairy, verticillasters 2–6, cymes 1–5-flowered, 2 per node;

proximal bracts lanceolate to linear, 9–32 × 1–6 mm, margins entire;

peduncles and pedicels erect, ± glandular-pubescent.

interrupted, cylindric, 4–18 cm, axis retrorsely hairy proximally, sparsely glandular-pubescent distally, verticillasters 2–5, cymes 2–6-flowered, (1 or)2 per node;

proximal bracts lanceolate, 9–38 × 2–12 mm, margins entire or ± serrate distally;

peduncles and pedicels ascending, sparsely glandular-pubescent.

calyx lobes ovate to lanceolate, 2.2–4.6 × 1–2.4 mm, glandular-pubescent;

corolla blue to violet, with reddish purple guides, funnelform, 11–17 mm, glandular-pubescent externally, moderately whitish lanate internally abaxially, tube 3–4 mm, throat gradually inflated, 4–6 mm diam., 2-ridged abaxially;

stamens included, pollen sacs divergent to opposite, subexplanate to explanate, 0.6–0.8 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 7–8 mm, reaching orifice, 0.2–0.4 mm diam., tip recurved, distal 0.5–1 mm densely pilose, hairs golden yellow, to 0.8 mm;

style 9–10 mm.

calyx lobes ovate, 3–4 × 1–2 mm, sparsely glandular-pubescent;

corolla violet to blue or purple, with purple nectar guides, funnelform, 14–23 mm, glandular-pubescent externally, ± white-pubescent internally abaxially, tube 4–6 mm, throat gradually inflated, 5–6 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular, 0.9–1.2 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 9–12 mm, reaching orifice, 0.4–0.6 mm diam., tip straight, distal 0.5–2 mm pilose, hairs yellow or golden yellow, to 0.8 mm;

style 9–13 mm.

5–7 × 4–5 mm, glabrous.

5–8 × 3.5–5 mm, glabrous.