Phrag. Acker's Superstar
            |- Phrag. Eric Young
            |             |- Phrag. besseae
            |             |_ Phrag. longifolium
            |_ Phrag. Jason Fischer
                          |- Phrag. Memoria Dick Clements
                          |             |- Phrag. lindleyanum var. sargentianum
                          |             |_ Phrag. besseae
                          |_ Phrag. besseae