Borrichia frutescens

Borrichia frutescens, or Sea ox-eye, is small shrub with large heads relative to their short, widely spaced yellow petals. They are common along the Texas coast – from beaches to brackish marshes – and bloom all year. Somewhat fleshy, oblong leaves attach directly to their woody stems.

References
Duncan, W. H., & Duncan, M. B. (1987). The Smithsonian guide to seaside plants of the Gulf and Atlantic coasts from Louisiana to Massachusetts, exclusive of lower peninsular Florida. Washington, D.C: Smithsonian Institution Press.

Richardson, A. (2013). Wildflowers and other plants of Texas beaches and islands. Austin, TX: University of Texas Press.