In between Diplarrena moraea and Talinum which one is  known as white iris?
Talinum Talinum is a genus of herbaceous succulent plants in the family Talinaceae (formerly in the family Portulacaceae) whose common names include fameflower and flameflower. Several species bear edible leaves, and "Talinum fruticosum" is widely grown in tropical regions as a leaf vegetable. "Talinum paniculatum" is grown as an ornamental plant.
Iris albicans Iris albicans, also known as the cemetery iris, white cemetery iris, or the white flag iris, is a species of iris which was planted on graves in Muslim regions and grows in many countries throughout the Middle East and northern Africa. It was later introduced to Spain, and then other European countries. It is a natural hybrid.