Flora of North America species comparison

herbaceous.

ascending to erect, (15–)20–50 cm, retrorsely hairy and glandular-pubescent, not glaucous.

ascending to erect, 60–150 cm, glaucous.

basal and cauline, not leathery, glabrous or sparsely, rarely densely, puberulent;

basal and proximal cauline 25–75 × 4–15 mm, blade ovate to oblanceolate or lanceolate, base tapered, margins subentire or ± serrate, apex obtuse to acute;

cauline 4–7 pairs, sessile, 25–80(–90) × (2–)4–10(–15) mm, blade lanceolate to linear, base truncate to clasping, margins entire or serrulate to serrate, apex acute to acuminate.

basal and proximal cauline 37–110 × 10–50 mm, blade obovate, base tapered, margins coarsely serrate to coarsely dentate, apex obtuse to acute;

cauline 4–8 pairs, sessile, 40–110 × 15–55 mm, blade ovate, base connate-perfoliate, margins coarsely serrate to coarsely dentate, apex acute to acuminate.

interrupted, sometimes continuous, cylindric, (3–)5–17(–21) cm, axis glandular-pubescent, verticillasters (2 or)3–5(–7), cymes 2–6-flowered, 2 per node;

proximal bracts lanceolate, 5–95 × 1–12 mm, margins entire or serrulate, rarely serrate;

peduncles and pedicels ascending to erect, glandular-pubescent.

interrupted, secund, 16–90 cm, axis glandular-pubescent, verticillasters 9–23, cymes 1–4-flowered;

proximal bracts ovate to lanceolate, 8–25 × 3–28 mm;

peduncles and pedicels ascending to erect, glandular-pubescent.

calyx lobes ovate to lanceolate, 4–6 × 1.5–2 mm, glandular-pubescent;

corolla light lavender to lavender, with violet nectar guides, tubular, 14–22 mm, glandular-pubescent externally, moderately white-pilose internally abaxially, tube 4–6 mm, throat slightly inflated, 4–6 mm diam., prominently 2-ridged abaxially;

stamens included, pollen sacs divergent, navicular, 1–1.3 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate;

staminode 11–12 mm, reaching orifice, 0.4–0.5 mm diam., tip slightly recurved, distal 7–9 mm densely villous, hairs golden yellow, to 1.5 mm;

style 9–12 mm.

calyx lobes ovate, 4–6 × 2.2–3 mm, glandular-pubescent;

corolla pink to rose pink, purple, or light yellow, with or without reddish or reddish purple nectar guides, strongly bilabiate, ventricose, 18–27 mm, glandular-pubescent externally, glandular-pubescent internally, and sparsely white- or yellowish lanate internally abaxially, tube 7–10 mm, length 1.7–2 times calyx lobes, throat abruptly inflated, constricted at orifice, 6–9 mm diam., rounded abaxially;

stamens: longer pair reaching orifice, filaments of shorter pair glandular-puberulent proximally, pollen sacs explanate, 1.4–1.8 mm, sutures smooth;

staminode 14–16 mm, included or exserted, 0.3–0.4 mm diam., tip recurved, distal 4–5 mm lanate, hairs yellow, to 2.8 mm, proximal 3–4 mm glandular-puberulent;

style 14–16 mm, glabrous.

6–8 × 3–4 mm, glabrous.

10–13 × 5–7 mm, glabrous or sparsely glandular-pubescent distally.

= 16.