Betony-leaf mistflower

Eupatorium betonicifolium Miller, Gard. Dict. ed. 8, Eupatorium no. 9. 1768

Stems decumbent or procumbent (rooting at nodes). Leaf blades usually oblong to oblong-lanceolate or oblanceolate to ovate, sometimes triangular, 2.5–5(–11) cm, bases cordate, obtuse, or truncate (often subauriculate), margins usually crenate to dentate, rarely entire, apices rounded to obtuse. Phyllaries ca. 4 mm. Corollas blue to purple, 2.5–3 mm. Cypselae 1.2–1.8 mm, glabrous; pappi: bristle tips dilated.

Varieties 2 (2 in the flora): Texas; Mexico.