What type of ecosystem does Vaccinium vitis-idaea typically thrive in?

Vaccinium vitis-idaea, commonly known as lingonberry, is well-suited to thrive in acidic environments, which are characteristic of peatlands. The acidic peatlands provide the specific soil chemistry, moisture, and nutrient conditions that lingonberries require for optimal growth. These ecosystems usually have a high organic matter content and maintain higher acidity, which aligns with the plant’s natural habitat preferences.

In contrast, the other options represent environments that do not provide the necessary chemical or physical conditions beneficial for Vaccinium vitis-idaea. Coastal marshes have different water and salinity conditions; dry sandy soils lack the moisture-holding capacity and organic matter that lingonberries need; and loamy forests typically have more neutral to alkaline soils, which is not conducive for this plant's growth. Therefore, the association of Vaccinium vitis-idaea with acidic peatlands is fundamentally rooted in its ecological requirements and preferences.