Flora of North America species comparison

20–90 cm, retrorsely hairy, sometimes glabrescent.

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

glabrous or retrorsely hairy;

basal and proximal cauline 16–80 × 3–10 mm, blade oblanceolate to lanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 6–15(–20) pairs, 45–150 × 1–6 mm, blade linear, base tapered, apex acute to acuminate.

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.

cylindric to ± secund, 10–35 cm, axis glabrous, verticillasters (2–)5–8, cymes (1 or)2–4(or 5)-flowered;

proximal bracts linear, 8–30(–80) × 0.5–2 mm;

peduncles and pedicels glabrous or pedicels rarely glandular-pubescent.

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 elliptic to ovate, 4.2–7(–8.5) × 2–2.6(–3.5) mm, glabrous, rarely glandular-pubescent;

corolla violet to blue, lavender, or purple, lined internally abaxially with reddish purple nectar guides, ventricose, 23–37 mm, glabrous internally, tube 7–10 mm, throat abruptly inflated, 9–10 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs parallel to divergent, 1.6–1.8 mm, sutures denticulate, teeth to 0.2 mm;

staminode 20–23 mm, exserted, 1.8–2.6 mm diam.;

style 20–24 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.

9–15 × 6–9 mm.

6–11 × 5–6 mm.