2. Sabatia brachiata Elliott

Pl. 421 e, f; Map 1877

Stems 15–50(–60) cm long, the lower half round in cross-section, without wings (angled above), the branches mostly opposite. Leaves lanceolate to narrowly elliptic, with rounded to tapering bases, 1–3-nerved, 15–40 mm long. Calyces deeply lobed, not or inconspicuously ribbed, 6–11 mm long, the lobes linear, 5–10 mm long. Corollas pink, rarely white, with a yellowish green spot at the base of each lobe, the lobes oblong to spathulate, 7–14 mm long, 3–5 times as long as the short tube. 2n=28, 32. June–August.

Uncommon, known thus far only from Butler County (Missouri to Virginia south to Georgia and Louisiana). Openings of upland forests; also roadsides and moist, open, disturbed areas.