Tetraneuris linearifolia
Tetraneuris linearifolia is a North American species of plants in the sunflower family, known by the common name fineleaf fournerved daisy. It grows in the south-central United States and northern Mexico.
Tetraneuris linearifolia is an annual herb up to tall. It forms a branching underground caudex sometimes producing as many as 10 above-ground stems. One plant can produce as many as 80 flower heads. Each head has 9–25 yellow ray flowers surrounding 50-200 yellow disc flowers.