Flora of North America species comparison

ascending to erect, 15–55(–82) cm, glabrous.

ascending to erect, 7–18(–24) cm, retrorsely hairy.

basal and cauline, glabrous;

basal and proximal cauline 19–116(–150) × 3–23(–31) mm, blade spatulate to oblanceolate, base tapered, apex rounded to obtuse, acute, or mucronate;

cauline 3–9 pairs, sessile, 20–95 × 10–30 mm, blade ovate to lanceolate, base clasping to cordate-clasping, apex acute.

basal and cauline, not leathery, glabrous or sparsely retrorsely hairy on petiole and, rarely, midvein;

basal and proximal cauline petiolate, 30–55(–70) × 2–5(–8) mm, blade oblanceolate to lanceolate or linear, base tapered, margins entire or obscurely and remotely dentate, apex obtuse to acute;

cauline 3–5 pairs, short-petiolate or sessile, 17–60 × 1–5 mm, blade lanceolate to linear, base tapered to clasping, margins entire or remotely dentate, apex acute.

interrupted, cylindric, (4–)10–35(–57) cm, axis glabrous, verticillasters 4–20(–35), cymes (2 or)3–5(–11)-flowered;

proximal bracts orbiculate to ovate, 15–70 × 5–31 mm;

peduncles and pedicels glabrous.

interrupted or continuous, cylindric, 2–11 cm, axis glandular-pubescent, verticillasters 3–6, cymes 2–6-flowered, 2 per node;

proximal bracts lanceolate to linear, 12–55 × 2–9 mm;

peduncles and pedicels glandular-pubescent.

calyx lobes ovate, 3.5–6 × 1.5–2.5 mm, margins entire or erose, broadly scarious, glabrous;

corolla lavender to bluish lavender or pinkish blue, with reddish or reddish purple nectar guides, tubular-funnelform, (12–)14–20 mm, glabrous externally, glabrous internally, tube 5–7 mm, throat gradually inflated, 4–6 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, 0.8–1.2 mm, sutures papillate;

staminode 7–9 mm, included or reaching orifice, 0.8–0.9 mm diam., tip recurved, distal 3–5 mm moderately to densely villous, hairs golden yellow, to 1.5 mm;

style 9–11 mm.

calyx lobes lanceolate, 6–8 × 1–1.4 mm, glandular-pubescent;

corolla violet to lavender or purple, with dark violet nectar guides, bilabiate, tubular-funnelform, 8–11 mm, white-lanate internally abaxially, tube 4–5 mm, throat gradually inflated, not constricted at orifice, 3.5–4.5 mm diam., slightly 2-ridged abaxially;

stamens included or longer pair reaching orifice or slightly exserted, pollen sacs opposite, explanate, 0.5–0.9 mm, dehiscing completely, sutures papillate;

staminode 6–8 mm, exserted, 0.3–0.4 mm diam., tip recurved to coiled, distal 4–5 mm densely pilose, hairs white or pale yellow, to 1 mm;

style 5–7 mm.

12–18(–20) × 7–11 mm.

4–6 × 3–4 mm.

= 16.