Flora of North America species comparison

herbaceous, rhizomelike.

ascending to erect, (30–)60–100 cm, slightly glaucous or not.

ascending, 4–9 cm, puberulent to glandular-pubescent, sometimes glabrate proximally, not glaucous.

basal and proximal cauline 20–165 × 12–50 mm, blade ovate to lanceolate, base tapered, margins finely to coarsely dentate, apex obtuse to acute;

cauline 4–7 pairs, sessile or proximals short-petiolate, 45–90 × 22–76 mm, blade ovate to triangular, base tapered or sessile on proximals, auriculate-clasping to connate-perfoliate on distal ones, margins finely to coarsely dentate, apex acute.

cauline, leathery, glabrous, glaucous;

cauline 1 or 2, sessile or short-petiolate, 7–28(–32) × 3–12 mm, blade obovate to oblanceolate or elliptic, base tapered, with a white band 0.2 mm wide, apex rounded to obtuse or acute.

interrupted or continuous, secund, (6–)12–48 cm, axis glabrous, verticillasters 4–13, cymes 1–3(–6)-flowered;

proximal bracts ovate (connate-perfoliate) or lanceolate (auriculate-clasping), (9–)16–55 × 10–60 mm;

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

continuous, ± secund, 1–7 cm, axis puberulent to glandular-pubescent, verticillasters 2–6, cymes 1- or 2(or 3)-flowered, 2 per node;

proximal bracts obovate to oblanceolate, 14–32 × 8–14 mm;

peduncles and pedicels puberulent to glandular-pubescent.

calyx lobes ovate, 3–5.5 × 2–3.2 mm, glabrous or glandular-pubescent;

corolla rose pink, with reddish purple nectar guides, strongly bilabiate, ventricose, (18–)25–34 mm, glandular-pubescent externally, glandular-pubescent internally, tube 6–9 mm, length 1.6–2 times calyx lobes, throat gradually inflated, ± constricted at orifice, 7–10 mm diam., rounded abaxially;

stamens: longer pair reaching orifice, filaments of shorter pair glandular-puberulent proximally, pollen sacs explanate, 1.5–2 mm, sutures smooth;

staminode 11–17 mm, included, 0.2–0.4 mm diam., tip straight to recurved, glabrous or distal 1–2 mm sparsely to moderately lanate, hairs yellow, to 1 mm;

style 20–25 mm, glabrous.

calyx lobes lanceolate, 5.5–7 × 1.5–2.2 mm, glabrous;

corolla white to lavender, without nectar guides, funnelform to weakly ventricose, (14–)17–20 mm, glabrous externally, glabrous internally, tube 6–7 mm, throat gradually inflated, not constricted at orifice, 6–8 mm diam., slightly 2-ridged abaxially;

stamens included, pollen sacs divergent, navicular, 0.9–1.4 mm, dehiscing incompletely, proximal 1/5–1/4 indehiscent, connective not splitting, sides sparsely hispid, hairs white, to 0.4 mm, sutures denticulate, teeth to 0.1 mm;

staminode 9–10 mm, included or slightly exserted, 0.5–0.6 mm diam., tip straight, 7–9 mm sparsely pilose, hairs yellow, to 1 mm;

style 9–11 mm.

7–12 × 4–6 mm, glabrous.

3.5–7.5 × 2.5–5 mm.