noun
Alaska blueberry; early blueberry; oval-leaf blueberry
A species of blueberry native to northern regions, including Japan. The scientific name is Vaccinium ovalifolium.
北海道の山ではクロウスゴが自生している。
Alaska blueberries grow wild in the mountains of Hokkaido.
クロウスゴの実はジャムにすると美味しい。
The berries of the Alaska blueberry are delicious when made into jam.
ブルーベリー is the general term for cultivated blueberries, while クロウスゴ refers specifically to the wild species Vaccinium ovalifolium.
The name クロウスゴ likely derives from the dark color of the berries (黒 'black') and an old name for a similar plant (臼子 'usugo'). The exact origin is uncertain.