Flora of North America species comparison

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

ascending to erect, 11–48 cm, retrorsely hairy or puberulent, hairs pointed, not glaucous.

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.

basal and cauline, opposite, puberulent, hairs pointed, sometimes glabrate abaxially, not glaucous;

basal and proximal cauline (12–)25–100 × 6–15(–25) mm, blade spatulate to oblanceolate, base tapered, margins entire, apex rounded to obtuse or acute;

cauline 2–4 pairs, sessile or proximals short-petiolate, 24–70 × 7–20 mm, blade elliptic or oblanceolate to lanceolate or oblong, base tapered to cordate-clasping, margins entire, apex obtuse to acute.

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.

interrupted, cylindric, 8–20 cm, axis glandular-pubescent, verticillasters 3–7, cymes 1–4-flowered, 2 per node;

proximal bracts lanceolate, 13–45 × 4–12 mm;

peduncles and pedicels erect, glandular-pubescent.

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.

calyx lobes lanceolate, 8–10 × 1.4–2.6 mm, glandular-pubescent;

corolla blue to lavender or violet, without nectar guides, ampliate, 24–30 mm, glandular-pubescent externally, glabrous internally, tube 8–10 mm, throat gradually inflated, 6–8 mm diam., 2-ridged abaxially;

stamens included, filaments glabrous, pollen sacs parallel, 1.6–1.9 mm, distal 1/3 indehiscent, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 13–15 mm, included, 0.4–0.5 mm diam., distal 5–8 mm densely pilose, hairs yellow, to 1.3 mm;

style 22–25 mm.

6–10 × 4–6 mm.

7–11 × 5–6 mm.