Flora of North America species comparison

ascending to erect, 4–20(–25) cm, retrorsely hairy.

ascending to erect, (10–)17–70 cm, ± retrorsely hairy proximally, also sparsely glandular-pubescent distally, not glaucous.

basal and cauline, not leathery, retrorsely hairy or basal and proximal cauline sometimes glabrate or glabrous abaxially;

basal and proximal cauline petiolate, 15–50(–60) × 5–18(–23) mm, blade oblanceolate to elliptic, base tapered, margins entire or remotely serrate distally, apex obtuse to acute;

cauline 2–4 pairs, sessile, 15–60 × 3–8 mm, blade oblanceolate to lanceolate, rarely pandurate, base tapered to clasping, margins entire or remotely serrate, apex obtuse to acute.

basal and cauline, basal sometimes withering by anthesis, not leathery, glabrous (except for puberulent petioles and midveins);

basal and proximal cauline (12–)25–87(–120) × (3–)5–18(–28) mm, blade lanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 4–6 pairs, short-petiolate or sessile, 17–98 × 2–16 mm, blade lanceolate to linear, base tapered to clasping, margins entire, apex acute.

continuous, cylindric to ± secund, 1–13 cm, axis glandular-pubescent, verticillasters 2–6, cymes 2- or 3(or 4)-flowered, 2 per node;

proximal bracts lanceolate, rarely oblanceolate, 12–42(–76) × 1–12(–16) mm;

peduncles and pedicels glandular-pubescent.

interrupted, narrowly conic, (3–)11–30 cm, axis sparsely glandular-pubescent, verticillasters 3–8, cymes 2–4-flowered, 2 per node;

proximal bracts lanceolate to linear, 10–45 × 1–5 mm, margins entire;

peduncles and pedicels ascending, sparsely glandular-pubescent.

calyx lobes lanceolate, 6–10(–12) × 1.6–2.6(–3) mm, glandular-pubescent;

corolla lavender to purple or pink, with reddish purple nectar guides, ventricose, 18–28 mm, densely white-lanate internally abaxially, tube (6–)8–12 mm, throat abruptly inflated, prominently constricted at orifice, 7–12 mm diam., rounded abaxially;

stamens: longer pair reaching orifice, pollen sacs opposite, explanate, 0.8–1.2 mm, dehiscing completely, sutures smooth;

staminode 16–18 mm, prominently exserted, 0.2–0.3 mm diam., tip coiled, distal 8–11 mm densely pilose, hairs orange or yellowish orange, to 1.3 mm;

style 15–23 mm.

calyx lobes lanceolate, 3–6 × 1.4–2 mm, glandular-pubescent;

corolla lavender to light blue, with reddish purple nectar guides, funnelform, 17–27 mm, glandular-pubescent externally, sparsely white- or yellowish lanate internally abaxially, tube 5–7 mm, throat gradually inflated, 6–7 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs opposite, navicular, 1.3–1.6 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 12–14 mm, included, 0.3–0.4 mm diam., tip recurved, distal 7–8 mm moderately to densely pilose, hairs yellow-orange, to 1 mm;

style 11–14 mm.

7–11 × 5–7 mm.

8–10 × 3.2–4 mm, glabrous.

= 16.