What kind of flower is this? There are many new branches, and it seems that there are still roots. What is this?

Dictyophora latifolia, also known as Dictyophora macrophylla, belongs to Agavaceae. Native to southern Africa, it likes warm, humid and semi-cloudy environment, and its leaves are particularly sensitive to light. In summer, it is afraid of strong light. The soil should be loose and fertile loam with good water retention, and the temperature in winter should not be lower than 10℃. Commonly used ramet propagation.