Is Codiaeum and Quesnelia native to the same geographical area?
Codiaeum Codiaeum is a genus of plants under the family Euphorbiaceae first described as a genus in 1824. It is native to insular Southeast Asia, northern Australia and Papuasia.
Ceratophyllum demersum Ceratophyllum demersum, commonly known as hornwort, rigid hornwort, coontail, or coon's tail, is a species of "Ceratophyllum". It is a submerged, free-floating aquatic plant, with a cosmopolitan distribution, native to all continents except Antarctica. It is a harmful introduced weed in New Zealand. It is also a popular aquarium plant.