Bidens cordifolia Sch. Bip.

Erect subshrubs 0.4–1 m tall; young stems and leaves moderately to densely pubescent. Leaves simple or compound and trifoliolate, 6–16 cm long including petiole, blade elliptic to elliptic-lanceolate, 4–9 × 2–4.8 cm, moderately pubescent, especially on lower surface, midrib, veins, and in a line along the petiole, margins serrate, apex acuminate to caudate. Heads usually 5, in cymes terminating main stem and lateral branches, 5–10 mm in diameter excluding rays, peduncles 1.5–4 cm long, sparsely pubescent, hair becoming denser near the heads; outer involucral bracts 5–9 mm long, oblong-elliptic, spreading, well differentiated from inner bracts, moderately to sparsely ciliate; ray florets usually 6–13 per head, sterile, rays yellow, ca. 15 × 4 mm; disk florets ca. 30, perfect. Achenes black, straight, ca. 3 × 0.5 mm, margins setose; pappus usually of 2–3 irregular antrorse barbed awns.

Marquesas Islands, occurring only in a relative small area of the Toovii Plateau on Nuku Hiva, from 750–1130 m.

Bidens cordifolia là một loài thực vật có hoa trong họ Cúc. Loài này được Sch.Bip. mô tả khoa học đầu tiên năm 1856.