Deep roots Few plants have as many names as this one. Bought primarily during the holidays, poinsettias are one of the most popular potted plants in the U.S. What we call the poinsettia is native to ...
Its sap was toxic to humans and animals, and could cause skin irritation ... but would require extensive testing in New Zealand to ensure it did not harm native plants. Sea spurge (Euphorbia paralias) ...
The African milk tree (Euphorbia trigona ... Like most Euphorbias, the African milk tree produces milky sap that is toxic to pets and humans. It is safest to wear gloves and goggles when working ...