Gaylussacia mosieri, the hirsute huckleberry[2] or woolly huckleberry,[3] is a plant species native to the coastal plains of the southeastern United States (Louisiana, Mississippi, Alabama, Georgia, Florida).

[4] Gaylussacia mosieri is a shrub up to 150 cm (5 feet) tall, sometimes forming small colonies.

Flowers are in groups of 4–8, white, or pink.

Fruits are black, sweet and juicy.

The species grows in swamps and marshes.