Flora of North America species comparison

(20–)30–40(–60) cm, glabrous or scabrous proximally.

ascending to erect, (3–)7–30 cm, retrorsely hairy.

(7–)10–25 pairs, (3–)5–30(–40) × 0.5–1(–2.5) mm, blade base tapered, margins glabrous or scabrous, apex acuminate to mucronate.

basal and cauline, not leathery, retrorsely hairy;

basal and proximal cauline petiolate, 15–45(–65) × 3–20(–25) mm, blade spatulate to oblanceolate or ovate, base tapered, margins entire or obscurely dentate distally, apex rounded to obtuse;

cauline (1 or)2–4 pairs, sessile, 16–55 × 4–10(–15) mm, blade lanceolate to oblanceolate or linear, base tapered to clasping, margins entire or obscurely dentate distally, apex obtuse to acute.

6–15 cm, verticillasters 6–10, cymes 1–3-flowered;

proximal bracts linear, 6–27(–33) × 0.3–1.5 mm;

peduncles and pedicels glabrous or scabrous.

continuous to ± interrupted, cylindric, 1–12 cm, axis glandular-pubescent, verticillasters (1–)3–7, cymes (1 or)2–4-flowered, 2 per node;

proximal bracts ovate to lanceolate, 8–34 × 2–16 mm;

peduncles and pedicels glandular-pubescent.

calyx lobes ovate, 1.5–3.5 × 1–1.5 mm;

corolla pink (limb milky pink or milky white), lined internally abaxially with reddish purple nectar guides, salverform, (14–)16–22(–28) mm, glandular-pubescent internally in 2 lines on abaxial surface, tube 3–4 mm, throat 3–5 mm diam.;

stamens included, pollen sacs 0.5–0.6 mm;

staminode 7–9 mm;

style 8–10 mm.

calyx lobes lanceolate, 4.8–6.2 × 1.2–1.9 mm, glandular-pubescent;

corolla blue to violet, with reddish violet nectar guides, bilabiate, tubular-funnelform, 15–20(–22) mm, sparsely white-lanate or glabrous internally abaxially, tube 4–6 mm, throat gradually inflated, not constricted at orifice, 4–7 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, navicular, 1.1–1.4 mm, dehiscing completely, sutures papillate;

staminode 7–9 mm, included or reaching orifice, 0.3–0.5 mm diam., tip straight to recurved, distal 4–5 mm sparsely pubescent, hairs yellow, to 0.8 mm;

style 10–12 mm.

6–9 × 3–5 mm.

6–10 × 4–6 mm.