Flora of North America species comparison

glabrous, glabrate, or scabrous proximally, not glaucous.

(20–)30–40(–60) cm, glabrous or scabrous proximally.

cauline, opposite, not leathery, glabrous or scabrous, not glaucous;

cauline sessile, blade linear, margins entire.

(7–)10–25 pairs, (3–)5–30(–40) × 0.5–1(–2.5) mm, blade base tapered, margins glabrous or scabrous, apex acuminate to mucronate.

interrupted, cylindric to conic, axis glabrous or scabrous, cymes 2 per node;

peduncles and pedicels spreading or ascending.

6–15 cm, verticillasters 6–10, cymes 1–3-flowered;

proximal bracts linear, 6–27(–33) × 0.3–1.5 mm;

peduncles and pedicels glabrous or scabrous.

calyx lobes: margins entire or erose, broadly scarious, glabrous;

corolla pink or lavender to violet, bilaterally symmetric, bilabiate, not personate, salverform or funnelform, glabrous externally, glandular-pubescent internally abaxially, throat slightly inflated, not constricted at orifice, rounded abaxially;

stamens included or longer pair reaching orifice or barely exserted, filaments glabrous, pollen sacs divergent, explanate, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode included, terete or slightly flattened distally, 0.1 mm diam., tip straight, glabrous;

style glabrous.

calyx lobes ovate, 1.5–3.5 × 1–1.5 mm;

corolla pink (limb milky pink or milky white), lined internally abaxially with reddish purple nectar guides, salverform, (14–)16–22(–28) mm, glandular-pubescent internally in 2 lines on abaxial surface, tube 3–4 mm, throat 3–5 mm diam.;

stamens included, pollen sacs 0.5–0.6 mm;

staminode 7–9 mm;

style 8–10 mm.

glabrous.

6–9 × 3–5 mm.

dark brown to reddish brown, angled, 1–2.8 mm.