Flora of North America species comparison

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

ascending to erect, (10–)13–36(–40) cm, glabrous or sparsely retrorsely hairy proximally, sometimes also sparsely glandular-pubescent.

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 along midvein;

basal and proximal cauline petiolate, 16–75(–120) × 6–15(–22) mm, blade oblanceolate, base tapered, margins entire or sinuate-dentate, apex obtuse to acute;

cauline 2–4 pairs, short-petiolate or sessile, 25–105 × 2–12 mm, blade lanceolate to linear, base tapered, margins entire or sinuate-dentate to dentate, apex acute, rarely obtuse.

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 to compact, secund, 6–20 cm, axis densely glandular-pubescent, verticillasters 4–9, cymes (1–)3–7-flowered, 2 per node;

proximal bracts lanceolate, 12–70 × 2–8 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, 6–9 × 1.3–2.2 mm, glandular-pubescent;

corolla lavender to violet, with deep violet nectar guides, ventricose-ampliate, 14–20(–22) mm, moderately white-pilose and glandular-pubescent internally abaxially, tube 5–8 mm, throat abruptly inflated, not constricted at orifice, 7–11 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, explanate, 0.8–1.2 mm, dehiscing completely, sutures smooth;

staminode 11–13 mm, prominently exserted, 0.7–0.9 mm diam., tip recurved, distal 8–9 mm densely lanate, hairs yellow, to 2 mm, and medial hairs shorter, stiffer, and retrorse;

style 11–13 mm.

12–18(–20) × 7–11 mm.

6–11 × 5–6 mm.

= 16.