Flora of North America species comparison

ascending to erect, 4–40(–70) cm, glabrous or retrorsely hairy, not glaucous.

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

basal and cauline, not leathery, glabrous;

basal and proximal cauline 45–125 × 5–26 mm, blade elliptic to oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 4–7 pairs, sessile or proximals short-petiolate, (7–)12–86 × (2–)3–20(–25) mm, blade oblanceolate to lanceolate or elliptic, rarely ovate, base tapered to truncate, margins entire, apex obtuse to acute.

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.

interrupted, cylindric, 2–25(–50) cm, axis glabrous or retrorsely hairy, verticillasters (1 or)2–10, cymes 2–9-flowered, 2 per node;

proximal bracts lanceolate, rarely ovate, 4–50 × 2–12 mm, margins entire;

peduncles and pedicels erect, retrorsely hairy.

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.

calyx lobes oblong to lanceolate, 3–4.8 × 0.7–1.8 mm, apex truncate to cuspidate or short- to long-caudate, glabrous;

corolla yellow, rarely white, ochroleucous, pink, or lavender, without nectar guides, tubular to tubular-funnelform, 6–11 mm, glabrous externally, moderately yellowish or white-lanate 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, 0.4–0.5 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 pilose, hairs yellowish brown, to 0.5 mm;

style 7–9 mm.

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.

3–5 × 2–3.5 mm, glabrous.

5–7 × 3–4.5 mm, glabrous.

= 32.

= 16.