Agalinis tenuifolia (Vahl) Raf.

Stems 2–6 dm, glabrous or nearly so, usually much branched; lvs linear, 1–6 mm wide; pedicels filiform, widely divergent, 1–2 cm at anthesis; cal-tube 2–4 mm, its lobes broadly triangular to subulate, 0.3–2.2 mm; cor 1–1.5 cm, its upper lip arching over the stamens, glabrous within; pollen-sacs 1.5–2.2 mm; 2n=28. Que. to Minn., s. to Fla. and Tex. (A. besseyana)

Moist open areas and low woods in Texas. Woodlands, fields, prairies, wet thickets and along streams.

Can be grown by seedlings.