Dandelions are commonly found in a variety of biomes, but they are most closely associated with temperate grasslands and ruderal habitats.

Here's why:

* Temperate Grasslands: These biomes are characterized by open fields with grasses as the dominant vegetation. Dandelions thrive in these areas due to their ability to tolerate full sun and withstand grazing.

* Ruderal Habitats: These are disturbed areas like roadsides, wastelands, and abandoned fields. Dandelions are highly adaptable and can quickly colonize these areas where other plants may struggle.

While dandelions can also be found in other biomes like forests and even deserts, they are not as abundant or characteristic of those environments. They're essentially generalists, capable of surviving in a wide range of conditions.