Antigonon leptopus, commonly known as coral vine, queen's wreath, Coralita, Cadena de Amor, bee bush or San Miguelito vine, is a species of flowering plant in the buckwheat family, Polygonaceae. It is a perennial that is native to Mexico. Antigonon leptopus is a fast-growing climbing vine that holds on via tendrils, and is able to reach over 7 metres in length. It has cordate (heart-shaped), sometimes triangular leaves 25 to 75 mm long. The flowers are borne in panicles, clustered along the rachis.