Phrag. Acker's Sunset
            |- Phrag. Sunset Glow
            |             |- Phrag. Eric Young
            |             |             |- Phrag. besseae
            |             |             |_ Phrag. longifolium
            |             |_ Phrag. Memoria Dick Clements
            |                           |- Phrag. lindleyanum var. sargentianum
            |                           |_ Phrag. besseae
            |_ Phrag. Grande
                          |- Phrag. longifolium
                          |_ Phrag. caudatum