Flora of North America species comparison

ascending to erect, (15–)35–60 cm, retrorsely hairy, hairs pointed, at least proximally, not glaucous.

ascending to erect, 43–140 cm, glaucous.

cauline, opposite, glabrous, glaucous;

cauline 4–8 pairs, short-petiolate or sessile, (15–)20–60 × (2–)6–13(–20) mm, blade elliptic or proximals oblanceolate to lanceolate, base tapered, margins entire, apex obtuse to acute.

basal and proximal cauline (28–)52–120(–145) × (5–)25–50(–60) mm, blade ovate, base tapered, margins coarsely dentate, apex obtuse to acute;

cauline 5–8 pairs, sessile or connate-perfoliate, 25–130 × 7–45 mm, blade ovate to triangular, base of distals auriculate-clasping or connate-perfoliate, margins coarsely dentate, distals sometimes entire, apex acute.

continuous, cylindric, 5–22 cm, axis glabrous or retrorsely hairy, verticillasters 4–8(–11), cymes 1- or 2(–4)-flowered, 2 per node;

proximal bracts lanceolate to elliptic, 8–66 × 1–13 mm;

peduncles and pedicels ascending to erect, peduncles glabrous or sparsely retrorsely hairy, pedicels papillate or glandular distally.

interrupted, rarely continuous, secund, 7–63 cm, axis glabrous or glandular-pubescent, verticillasters (4–)7–17, cymes (1 or)2–5-flowered;

proximal bracts ovate to lanceolate, 8–40 × 4–38 mm;

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

calyx lobes lanceolate, 4–6(–7) × 1.4–2.6 mm, glabrous;

corolla lavender to light violet or violet, with or without faint lavender nectar guides, ventricose-ampliate, (20–)22–25(–30) mm, glabrous externally, glabrous internally, tube 6–8 mm, throat gradually inflated, 7–9 mm diam., 2-ridged abaxially;

stamens: longer pair exserted, filaments glabrous, pollen sacs parallel, 1.5–1.9(–2.1) mm, distal 1/2–2/3 indehiscent, sides glabrous or hispidulous to lanate, hairs white, to 0.5 mm, sutures denticulate, teeth to 0.2 mm;

staminode 12–14 mm, reaching orifice or exserted, 0.6–0.8 mm diam., glabrous;

style 18–20 mm.

calyx lobes ovate, (3.4–)4.2–6(–7.5) × 1.9–3.6 mm, glabrous or glandular-pubescent;

corolla pale pink to white or pinkish lavender, with reddish purple nectar guides, strongly bilabiate, ventricose-ampliate, 25–38 mm, glandular-pubescent externally, glandular-pubescent internally, sometimes also sparsely white-lanate abaxially, tube 4–8 mm, length 1–1.4 times calyx lobes, throat abruptly inflated, constricted at orifice, 12–21 mm diam., rounded abaxially;

stamens included or longer pair reaching orifice, filaments of shorter pair glandular-puberulent proximally, pollen sacs navicular, 1.6–2.4 mm, sutures smooth;

staminode 25–30 mm, exserted, 0.9–1.1 mm diam., tip strongly recurved to coiled, distal 8–10 mm, and especially tip, moderately to densely lanate, hairs yellow, to 3.5 mm, proximal 6–8 mm glandular-puberulent;

style 19–23 mm, glabrous or sparsely glandular-pubescent proximally.

7–11 × 3.5–4.5 mm.

11–16 × 6–8 mm, sparsely glandular-pubescent distally.

= 32.