Veiny Brickellbush

Perennials, 60–80 cm (caudices woody). Stems branched, pubescent, gland-dotted. Leaves opposite; petioles 0–1 mm; blades 3-nerved from bases, oblong to linear, 20–60 × 2–10 mm, bases cuneate, margins entire or dentate, apices obtuse, faces pubescent, gland-dotted. Heads in open, paniculiform arrays or borne singly (often terminal on lateral branches). Peduncles (20–)30–150 mm, puberulent, gland-dotted. Involucres cylindric to campanulate, 9–10 mm. Phyllaries 25–35 in 6–9 series, greenish, often purple-tinged, 3–9-striate, unequal, margins scarious (ciliate); outer broadly ovate to orbiculate (glandular-pubescent, apices acute to cuspidate), inner lanceolate to linear-lanceolate (glabrous, apices acute to mucronate). Florets 18–25; corollas pale yellow, often purple-tinged, 5.5–7 mm. Cypselae 3–3.5 mm, pubescent to velutinous; pappi of 30–40 white, barbellate bristles. 2n = 18, 18 + 1.

Coleosanthus venosus Wooton & Standley, Contr. U.S. Natl. Herb. 16: 177. 1913

Brickellia venosa, the veiny brickellbush, is a North American species of flowering plants in the family Asteraceae. It is native to northern Mexico (Chihuahua, Sonora) and the southwestern United States (New Mexico, Arizona, far western Texas (El Paso County).

Brickellia venosa is a branching shrub up to 80 cm (32 inches) tall, growing from a woody caudex. It produces many small flower heads with yellow disc florets but no ray florets.