What plant has leaves that radiate from the center with a slit feature?

The plant characterized by leaves that radiate from the center and feature a slit is indeed the waterlily. Waterlilies are well known for their broad, floating leaves that extend from a central root system. These leaves often exhibit a unique shape, with a notch or slit along their edges, which enhances their adaptability to varying water levels. The circular arrangement of leaves around the stem also contributes to the plant's overall aesthetic and functional structure in aquatic environments.

In contrast, watermeal is a small, free-floating plant with tiny, rounded leaves that do not have a slit feature. Watershield, on the other hand, has more elongated leaves that do not radiate from a central point and do not typically showcase a slit. Cattails possess tall, narrow leaves that grow upright from a central stalk, making them quite distinct in appearance compared to waterlilies. Thus, the identifying characteristics of waterlily leaves align closely with the description provided in the question.