Cordia subcordata growing on the beach. Its seeds float and are dispersed by the ocean. Commonly found on tropical coasts. Lily Beach, Christmas Island, Australia, April 2011. Cordia subcordata is a bushy tree that grows to 15 m and belongs to the Boraginaceae family. That family includes Paterson's Curse, Echium plantagineum a herb-like weed. That is very weird.