Another plant in the Asteraceae family was observed at University Beach, Texas A&M University-Corpus Christi.
This plant has yellow flowers with dark-yellow to greenish centers. It is a common wild flower in this region.
small shrub in tidal area
growing in large, dense clumps on edges of salt marsh
De Soto Monument, Manatee County, Florida
Borrichia frutescens (I think). 3.5 cm across, ~60 cm tall, growing in a dense stand near the edge of a lagoon. I left it uncropped to show the leaves, but it's super in original size.
Borrichia is a genus of flowering plants in the aster family, Asteraceae. It is named for Danish physician Ole Borch (1628-1690). Members of the genus are commonly known as seaside tansies. They are native to the United States, Mexico, and the Caribbean.