Flora of North America species comparison

erect, (10–)18–90(–130) cm, glabrous proximally, usually sparsely glandular distally, not glaucous.

erect, (50–)80–120 cm, glaucous or not.

basal and cauline, not leathery, glabrous, not glaucous;

basal and proximal cauline 35–140(–170) × 8–24 mm, blade oblanceolate, sometimes lanceolate, base tapered, margins entire, apex obtuse to acute;

cauline 3–6(–11) pairs, short-petiolate or sessile, 28–95(–130) × 4–15 mm, blade oblanceolate to lanceolate, base tapered to clasping, apex acute.

basal and proximal cauline 40–100 × 8–50 mm, blade oblanceolate to elliptic, base tapered, margins coarsely dentate, apex obtuse to acute;

cauline 5–8 pairs, sessile, 32–120 × 10–45 mm, blade ovate to lanceolate, base sessile, proximals usually auriculate-clasping, distal ones usually cordate-clasping, margins dentate to serrate, apex acute to acuminate.

interrupted, secund, (4–)12–38 cm, axis glabrous or glandular-pubescent, verticillasters 4–12, cymes 1–3(–6)-flowered, 2 per node;

proximal bracts lanceolate, (3–)15–75 × (1–)2–22 mm;

peduncles and pedicels glandular-pubescent, sometimes sparsely so.

interrupted, cylindric, 20–80 cm, axis glabrous or glandular-pubescent distally, verticillasters 9–16, cymes (1–)3–8(–13)-flowered;

proximal bracts ovate to lanceolate, 15–35 × 4–25 mm;

peduncles and pedicels spreading to ascending, glabrous or glandular-pubescent.

calyx lobes ovate to lanceolate, 4.5–7.5 × (1.5–)2.1–2.8 mm, glandular-pubescent;

corolla blue to violet or purple, with violet nectar guides, ventricose, 19–28 mm, ± glandular-pubescent externally, glabrous internally, tube 6–10(–11) mm, throat gradually inflated, not constricted at orifice, 7–10 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 1.6–2 mm, dehiscing incompletely, connective not splitting, sides sparsely to moderately hispid or pubescent, hairs white, to 0.2 mm, sutures denticulate, teeth to 0.1 mm;

staminode 13–16 mm, reaching orifice or slightly exserted, 0.6–0.8 mm diam., tip straight, distal 2–3 mm sparsely villous, hairs yellow, to 0.7 mm;

style 14–18 mm.

calyx lobes round to ovate or lanceolate, 3.5–5.5 × 2.5–3.2 mm, glabrous or glandular-pubescent;

corolla lavender, blue, pink, or purple, with reddish purple nectar guides, strongly bilabiate, ventricose-ampliate, 24–34 mm, glandular-pubescent externally, glabrous or sparsely white-lanate internally abaxially, glandular-pubescent adaxially, tube 7–9 mm, length 1.6–2 times calyx lobes, throat abruptly inflated, not constricted at orifice, 8–14 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, filaments of shorter pair glandular-puberulent proximally, pollen sacs navicular, 1.8–2.4 mm, sutures papillate or denticulate, papillae or teeth to 0.1 mm;

staminode 15–16 mm, included, 0.5–0.9 mm diam., tip straight, glabrous distally or distal 1–2 mm sparsely pilose, hairs yellow, to 0.5 mm [5–6 mm moderately pilose, hairs yellow, to 1.5 mm], proximal 1–2 mm glandular-pubescent;

style 15–19 mm, glabrous.

8–12 × 5–6 mm.

9–14 × 6–8 mm, glabrous.

= 16.

= 16.