About Okenia hypogaea Schltdl. & Cham.
Okenia hypogaea Schltdl. & Cham., commonly called beach peanut or burrowing four-o'clock, is a flowering plant species belonging to the family Nyctaginaceae. This annual plant is native to tropical North America, with a distribution that extends from northern Mexico to Nicaragua, and also includes southern Florida. It is the only species in the genus Okenia.