Flora of North America species comparison

ascending to erect, 6–26 cm, retrorsely hairy or glabrate, not glaucous.

erect, (6–)10–40 cm, glabrous or puberulent, not glaucous.

basal and cauline, ± leathery or not, glabrous or puberulent proximally on petiole and along midvein abaxially;

basal and proximal cauline 10–60 × 3–18 mm, blade spatulate to elliptic, base tapered, margins entire, sometimes ± serrulate distally, apex rounded to obtuse or acute;

cauline 1–3 pairs, sessile, 14–35 × 2–8 mm, blade lanceolate, sometimes oblanceolate, base truncate, margins entire, rarely ± serrulate distally, apex obtuse to acute.

basal and cauline, ± leathery or not, glabrous;

basal and proximal cauline (12–)25–115 × (4–)7–22 mm, blade oblanceolate to lanceolate or elliptic, base tapered, margins entire, apex obtuse to acute;

cauline 2–4 pairs, sessile, 18–65 × 3–16 mm, blade oblanceolate to lanceolate, sometimes ovate, base tapered to clasping, margins entire, apex obtuse to acute.

interrupted, cylindric, 1–13 cm, axis moderately glandular-pubescent, verticillasters 1–5, cymes 2–5-flowered, 2 per node;

proximal bracts lanceolate, 8–30 × 2–7 mm, margins entire;

peduncles and pedicels ascending to erect, glandular-pubescent.

continuous or interrupted, cylindric, 1–12 cm, axis ± puberulent, rarely glandular-pubescent, verticillasters 1–4, cymes 2–10-flowered, 2 per node;

proximal bracts lanceolate, sometimes ovate, 12–44 × 2–13 mm, margins entire;

peduncles and pedicels erect, glabrous or ± puberulent, rarely glandular-pubescent.

calyx lobes ovate to lanceolate, 2.6–4.8 × 1–1.8 mm, glandular-pubescent;

corolla light blue to light purple, with violet nectar guides, funnelform, 10–14 mm, glandular-pubescent externally, moderately white- or yellowish lanate internally abaxially, tube 4–5 mm, throat slightly inflated, 3.5–4.5 mm diam., 2-ridged abaxially;

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

staminode 6–7 mm, included, 0.3–0.4 mm diam., tip recurved, distal 0.5–1.5 mm densely pilose, hairs yellow, to 0.7 mm;

style 8–10 mm.

calyx lobes ovate to lanceolate, 5–9 × 1.8–2.7 mm, glabrous, rarely glandular-pubescent;

corolla light yellow, without nectar guides, funnelform, 12–16 mm, glabrous externally, rarely glandular-pubescent, sparsely to moderately yellow-pubescent internally abaxially, tube 5–7 mm, throat gradually inflated, 4–6 mm diam., 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular to subexplanate, 0.7–0.9 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 8–9 mm, included, 0.4–0.7 mm diam., tip straight to slightly recurved, distal 2–3 mm moderately pilose, hairs yellow or golden yellow, to 0.8 mm;

style 8–11 mm.

4–6 × 2.5–4 mm, glabrous.

5–8 × 4–5 mm, glabrous.

= 48.