Flora of North America species comparison

erect, (6–)10–45 cm, retrorsely hairy, also glandular-pubescent distally, not glaucous.

ascending to erect, (15–)35–55 cm, spreading-puberulent or retrorsely hairy proximally, glandular-pubescent medially and distally, not glaucous.

basal and cauline, not leathery, proximals usually retrorsely hairy proximally, especially along midveins and margins, mostly glabrate distally, distals retrorsely hairy and, sometimes, sparsely glandular-pubescent, sometimes ± glaucescent;

basal and proximal cauline 15–75 × (2–)5–19 mm, blade spatulate to oblanceolate or elliptic, base tapered, margins entire, apex rounded to obtuse or acute, sometimes mucronate;

cauline 2–5 pairs, sessile, 11–70 × (1–)4–15 mm, blade of proximal leaves oblanceolate to lanceolate, distal leaves lanceolate, base tapered to clasping, margins entire, rarely ± denticulate distally, apex acute to acuminate.

basal and cauline, basal often withering by anthesis, not leathery, puberulent or retrorsely hairy;

basal and proximal cauline 25–80(–110) × 5–24(–32) mm, blade spatulate to obovate, oblanceolate, or lanceolate, base tapered, margins subentire or ± denticulate or serrate, apex rounded to obtuse or acute;

cauline 2–9 pairs, short-petiolate or sessile, (25–)60–120 × 4–20 mm, blade lanceolate to linear, base tapered to clasping, margins entire or ± denticulate to serrate, apex acute.

interrupted, secund, (1–)3–24(–30) cm, axis glandular-pubescent, verticillasters (2 or)3–7, cymes 1–4-flowered, (1 or)2 per node;

proximal bracts lanceolate to linear, 7–38(–60) × 1–7 mm, margins entire;

peduncles and pedicels erect, glandular-pubescent.

interrupted, cylindric, (5–)8–18(–25) cm, axis glandular-pubescent, verticillasters (2 or)3–6, cymes 2–4(–6)-flowered, 2 per node;

proximal bracts lanceolate to linear, 60 × 6 mm, margins entire;

peduncles and pedicels ascending to erect, glandular-pubescent.

calyx lobes lanceolate, 2.8–6 × 0.9–2 mm, glandular-pubescent;

corolla blue to violet-blue, with reddish purple nectar guides, tubular to tubular-funnelform, 11–20 mm, glandular-pubescent externally, sparsely to moderately white-villous to white-lanate internally abaxially, tube 5–7 mm, throat slightly inflated, 3–6 mm diam., 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular, 0.8–1.2 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 10–12 mm, included or slightly exserted, 0.3–0.4 mm diam., tip straight to slightly recurved, distal 3–6 mm densely pilose, hairs golden, to 2 mm;

style 9–13 mm.

calyx lobes ovate to lanceolate, 5–7 × 3–4 mm, glandular-pubescent;

corolla white to ochroleucous, without nectar guides, personate, tubular, 24–32 mm, glandular-pubescent externally, densely yellowish lanate internally abaxially, tube slightly differentiated from throat, 6–10 mm, throat slightly inflated, 6–8 mm diam., 2-ridged abaxially;

stamens included, pollen sacs divergent, navicular to subexplanate, 1–1.5 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 18–20 mm, included or slightly exserted, 0.4–0.6 mm diam., tip straight, distal 14–16 mm ± villous, hairs yellowish orange, to 1.5 mm;

style 20–22 mm.

5–7 × 3–4.5 mm, glabrous.

8–13 × 3–5 mm, glabrous.

= 16.

= 16.