Flaveria floridana

Flaveria floridana, Florida yellowtops, is a North American plant species of yellowtops within the sunflower family. It has been found only along the Gulf Coast of Florida between Clearwater and Marco Island, mostly in the Tampa Bay region.
"Flaveria floridana" is an perennial herb up to tall. Leaves are long and narrow, up to long. One plant can sometimes produce as many as 100 flower heads in a tightly packed array. Each head contains 9-14 yellow disc flowers. Sometimes it produces a single yellow ray flower as well.