Brickellia simplex A. Gray

Perennials, 40–60 cm (caudices woody). Stems branched, pubes-cent. Leaves opposite or alternate; petioles 3–20 mm; blades 3-nerved from bases, deltate to lanceolate, 10–60 × 7–50 mm, bases cordate to truncate, margins crenate-dentate, apices acute, faces sparsely to densely pubescent, gland-dotted. Heads borne singly or in open, paniculiform arrays. Peduncles 20–50 mm, glandular-pubescent. Involucres cylindric to broadly campanulate, 12–14 mm. Phyllaries 40–60 in 5–6 series, greenish, 4–6-striate, unequal, margins narrowly scarious (apices acute to acuminate); outer narrowly lanceolate (glandular-pubescent), inner lanceolate (glabrous or tomentulose). Florets ± 60; corollas pale yellow, often purple-tinged, 9–10 mm. Cypselae 4–5 mm, hispidulous or glabrate; pappi of 32–36 white, barbellate bristles.

Brickellia simplex, the Sonoran brickellbush, is a North American species of flowering plants in the family Asteraceae. It is native to northern Mexico (Chihuahua, Sonora, Coahuila) and the southwestern United States (New Mexico, Arizona).

Brickellia simplex is a branching shrub up to 60 cm (24 inches) tall, growing from a woody caudex. It produces many small flower heads with yellow disc florets but no ray florets.

Brickellia simplex là một loài thực vật có hoa trong họ Cúc. Loài này được A.Gray mô tả khoa học đầu tiên năm 1853.