Flora of North America species comparison

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

12–50 cm.

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.

cauline 5–15 pairs (distal ones much-reduced), 5–30(–46) × 4–15 mm, blade base tapered to acute to cuneate, margins sharply dentate, especially distally, or entire, apex obtuse to 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.

(2–)5–15(–40) cm, verticillasters (2 or)3–7(–12), cymes 1- or 2(or 3)-flowered;

proximal bracts elliptic to lanceolate, 2–5 × 1–3 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 elliptic to ovate, 3.5–5 × 1.5–2.2 mm;

corolla unlined internally, 22–27 mm, glandular-pubescent internally, tube 4–5 mm, throat 6–7 mm diam.;

pollen sacs 1.2–1.5 mm;

staminode 16–19 mm;

style 18–25 mm.

12–18(–20) × 7–11 mm.

7–10 × 5–7 mm.

= 16.