Bidens evapelliana W. L. Wagner, J. R. Clark & Lorence

Prostrate, suffrutescent perennial herbs up to 0.3–0.5 m tall. Leaves simple, coriaceous, 1.3–3.6(–7) cm long including petiole, petiole relatively short, blades elliptic to ovate, 1–2.8(–5.6) × 0.7–2(–3.5) cm, glabrous, margins serrate, apex rounded to acute. Heads 1–3, in compact cymes terminating main stem and lateral branches, 4–8 mm in diameter excluding rays, peduncles 1–2.5 cm long, glabrous; outer involucral bracts 4–6 mm long, broad, well differentiated from inner bracts; ray florets normally 3–6 per head, sterile, rays yellow, ca. 8 × 2–5 mm; disk florets ca. 23–25, perfect. Achenes tawny to gray, straight, ca. 5 × 1 mm, slightly keeled, glabrous; pappus of 2 irregular antrorse barbed awns.