There isn't a specific, widely-used term for leaves with several colours. However, you could use these descriptive terms:

* Variegated: This is the most common term for leaves with patches or streaks of different colours.

* Multicolored: This term is more general and simply indicates that the leaf has multiple colours.

* Bicolor: This term is used for leaves with two distinct colours.

* Tricolor: This term is used for leaves with three distinct colours.

You could also use more specific terms based on the specific colour combination, such as "yellow-green variegated" or "pink-and-white striped."

Ultimately, the best term to use will depend on the specific context and the level of detail you want to convey.