About Houstonia procumbens (Walter ex J.F.Gmel.) Standl.
Houstonia procumbens, commonly known as the roundleaf bluet, is a perennial flowering species belonging to the Rubiaceae family. It is native to the southeastern United States, where it occurs naturally in Louisiana, Mississippi, Alabama, Georgia, Florida, and South Carolina. Its native habitats include disturbed sites and moist, open, sandy areas. Flowering occurs from March to October. This species can grow as an erect or creeping perennial, and may also grow as an annual. Its leaves are arranged oppositely, with a shape ranging from ovate to suborbicular. Leaves measure 7 to 10 millimeters long and 4 to 10 millimeters wide. The flowers are white and have four petals.