Brickellia veronicifolia (Kunth) A. Gray

Brickellia veronicifolia occurs in the Chisos Mountains.

Shrubs, 50–90 cm. Stems branched from bases, densely pubescent, gland-dotted. Leaves mostly opposite (sometimes alternate); petioles 2–5 mm; blades 3-nerved from bases, ovate to reniform, 4–15 × 7–25 mm, bases cordate to subcordate, margins crenate, apices obtuse, faces pubescent, gland-dotted. Heads in paniculiform arrays. Peduncles 0–2 mm, densely pubescent, gland-dotted. Involucres cylindric to broadly campanulate, 9–11 mm. Phyllaries 35–40 in 7–9 series, greenish, often purple-tinged, 3–6-striate, unequal, margins scarious (apices obtuse to acute); outer broadly ovate to lance-ovate (puberulent; margins ciliate), inner lanceolate (glabrous). Florets 18–33; corollas cream to pale yellow, often red or purple-tinged, 6–7.5 mm. Cypselae 3–4 mm, sparsely hispidulous; pappi of 24–28 white or tawny, barbellate bristles. 2n = 18.

Eupatorium veronicifolium Kunth in A. von Humboldt et al., Nov. Gen. Sp. 4(fol.): 88, plate 341. 1818; 4(qto.): 112. 1820 (as veronicaefolium); Brickellia veronicifolia var. petrophila (B. L. Robinson) B. L. Robinson