This plant is from South Africa. This plant grows in a short columnar form with long thin leaves with a tuberculate stem. This plant grows best in light shade to full sun. The flower is a greenish color and on the larger size for a euphorbia. These plants are amazing once they grow and get tall and thick. Some will branch.
NOTE: All succulent Euphorbia leak a white milky sap when cut or damaged. This sap can be very irritating to the skin and especially the eyes. Different people have different reactions. Make sure to wash away any sap from your hands/clothes/tools. Handle with care.