Flora of North America species comparison

erect, (15–)20–55(–60) cm, glabrous.

ascending to erect, 10–90 cm, glaucous or not.

basal and cauline, glabrous;

basal and proximal cauline 20–100 × 4–24 mm, blade spatulate to oblanceolate, base tapered, apex rounded to obtuse or acute, sometimes mucronate;

cauline 2–5 pairs, sessile, (14–)23–95 × (4–)6–31 mm, blade lanceolate or ovate to trullate, base clasping to cordate-clasping, apex obtuse to acute.

basal and proximal cauline 31–90 × 11–20 mm, blade oblanceolate to elliptic, base tapered, margins finely to coarsely dentate, apex rounded to obtuse;

cauline 3–6 pairs, short-petiolate or sessile, (15–)30–90 × 4–30 mm, blade lanceolate to ovate-oblong, base tapered, margins coarsely dentate, distals sometimes entire, apex obtuse or acute.

interrupted, cylindric, (5–)11–38 cm, axis glabrous, verticillasters (3 or)4–12, cymes 2- or 3(–5)-flowered;

proximal bracts trullate to ovate, 11–70 × 7–38 mm;

peduncles and pedicels glabrous.

interrupted, cylindric, (5–)7–34 cm, axis sparsely to densely glandular-pubescent, verticillasters 4–10, cymes 2–4-flowered;

proximal bracts ovate to lanceolate, 5–50 × 2–18 mm;

peduncles and pedicels spreading to ascending, glandular-pubescent.

calyx lobes ovate, 4.5–7 × 1.5–3.5 mm, margins entire or erose, broadly scarious, glabrous or obscurely glandular along margins distally;

corolla lavender to violet or bluish, with violet or reddish purple nectar guides, tubular-salverform, 14–23(–28) mm, glabrous externally or glandular, glabrous or sparsely white-villous internally abaxially, tube 7–9 mm, throat slightly inflated, 4–6 mm diam., rounded abaxially;

stamens included, pollen sacs opposite, 1–1.3 mm, sutures papillate;

staminode 8–11 mm, reaching orifice, 0.8–1.6 mm diam., tip recurved, distal 1–3 mm villous, hairs golden yellow, to 1.5 mm;

style 11–15 mm.

calyx lobes ovate, 4.5–8.5 × (2–)2.9–3.2 mm, glandular-pubescent;

corolla white to pink or light lavender to light blue or light violet, with reddish purple nectar guides, strongly bilabiate, ventricose-ampliate, 22–35 mm, glandular-pubescent externally, glandular-pubescent internally, also white-villous abaxially, tube 5–8 mm, length 0.9–1.2 times calyx lobes, throat abruptly inflated, constricted at orifice, 10–18 mm diam., rounded abaxially;

stamens included, filaments of shorter pair glandular-puberulent proximally, pollen sacs navicular to subexplanate, 1.6–2.2 mm, sutures smooth;

staminode 20–22 mm, exserted, 0.4–0.8 mm diam., tip recurved, distal 8–10 mm densely lanate, hairs yellowish or whitish, to 4 mm;

proximal 6–8 mm densely glandular-pubescent;

style 15–18 mm, glabrous.

10–15 × 8–10 mm.

10–14 × 5–8 mm, glabrous.

= 16.

= 16.