Flora of North America species comparison

glabrous, glabrate, or scabrous proximally, not glaucous.

20–40 cm, glabrous or glabrate.

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

cauline sessile, blade linear, margins entire.

10–20 pairs, 5–32 × 0.3–2 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.

2–15(–23) cm, verticillasters (2–)5–10(–30), cymes 1- or 2-flowered;

proximal bracts linear, 3–22 × 0.2–1 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, 1–2.7 × 0.9–1.5 mm;

corolla lavender to violet, lined internally abaxially with reddish purple nectar guides, funnelform, 8–14 mm, glandular-pubescent internally in 2 lines on abaxial surface, sometimes also in sinuses of adaxial lobes, tube (1.5–)2–3 mm, throat 3–5 mm diam.;

stamens included or longer pair reaching orifice or barely exserted, pollen sacs 0.4–0.5 mm;

staminode 5–6 mm;

style 7–9 mm.

glabrous.

(4–)5–8 × 3–4 mm.

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

= 16.