Flora of North America species comparison

ascending to erect, 10–30(–35) cm, retrorsely hairy proximally, glandular-pubescent distally.

decumbent to erect, 5–70(–90) cm, glabrous or sparsely to densely puberulent, not glaucous.

basal and cauline, not leathery, glabrous, puberulent, or retrorsely hairy;

basal and proximal cauline petiolate, (15–)30–60(–100) × (1–)2–5(–7) mm, blade lanceolate to linear, base tapered, margins entire, apex obtuse to acute;

cauline 2–6 pairs, sessile, (25–)40–80 × 2–7 mm, blade lanceolate to linear, base tapered to slightly clasping, margins entire or obscurely denticulate, apex acute to acuminate.

basal and cauline, ± leathery or not, glabrous or basal ones sparsely to densely puberulent, not glaucous;

basal and proximal cauline (20–)45–160 × 3–40(–55) mm, blade obovate to oblanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 1–6 pairs, sessile or proximals short- to long-petiolate, 16–100 × 5–45(–60) mm, blade ovate or oblanceolate to lanceolate, base cordate-clasping to clasping, apex obtuse to acute.

continuous or interrupted, cylindric or slightly secund, (5–)7–23 cm, axis glandular-pubescent, verticillasters 3–8, cymes 2–4-flowered, 2 per node;

proximal bracts lanceolate to linear, 18–100 × 2–12 mm;

peduncles and pedicels glandular-pubescent.

continuous or interrupted, cylindric to subsecund, 2–30 cm, axis glabrous, verticillasters 2–12, cymes 3–7-flowered, 2 per node;

proximal bracts ovate to lanceolate, 7–80 × (1–)3–35 mm;

peduncles and pedicels glabrous, peduncles to 20 mm, pedicels 1–9 mm.

calyx lobes ovate to lanceolate, (6–)7–9 × 1–2 mm, densely glandular-pubescent;

corolla violet to lilac or pinkish blue, with magenta or violet nectar guides, weakly bilabiate, tubular-funnelform, (16–)18–22(–24) mm, moderately white-pilose internally abaxially, tube 4–6 mm, throat gradually inflated, not constricted at orifice, 7–9 mm diam., rounded abaxially;

stamens included, pollen sacs divergent, navicular, 1.2–1.5 mm, dehiscing incompletely, connective not splitting, sutures papillate;

staminode 13–16 mm, reaching orifice or exserted, 0.6–0.9 mm diam., tip recurved, distal 10–15 mm moderately to densely villous, hairs orangish, to 2.5 mm;

style 11–14 mm.

calyx lobes ovate to lanceolate, 3–6.5 × 1.3–2.6 mm, apex acute to acuminate or cuspidate, glabrous;

corolla blue to violet, without nectar guides, ventricose, 12–25(–28) mm, glabrous externally, glabrous internally, tube 6–11 mm, throat gradually inflated, not constricted at orifice, 6–11 mm diam., 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs divergent, navicular, 1.2–2(–2.2) mm, dehiscing incompletely, proximal 1/4–1/3 indehiscent, connective not splitting, sides hispid, hairs white, to 0.5 mm, sutures denticulate, teeth to 0.1 mm;

staminode 11–14 mm, included or reaching orifice, 0.3–0.6 mm diam., tip straight to recurved, distal 6–9 mm sparsely to moderately pilose to lanate, hairs orange, yellow, or white, to 1 mm;

style 9–16 mm.

(6–)8–10 × 3–4 mm.

7–15 × 5–10 mm.

= 16.