native to New Zealand, where it grows in alpine and subalpine regions, particularly in the South Island. This plant thrives in rocky, well-drained soils, often found in scree slopes, riverbeds, and dry grasslands. It is adapted to harsh, windy environments and can tolerate extreme temperatures, making it well-suited to New Zealand's alpine ecosystems. Raoulia hookeri is a mat-forming perennial that creates dense, silver-gray cushions, sometimes referred to as "vegetable sheep" due to its appearance.

Named in honor of Sir William Hooker, a British botanist and director of the Royal Botanic Gardens at Kew. Hooker was known for his contributions to botanical science and exploration, including his work on the flora of New Zealand. The genus Raoulia itself was named by the botanist Joseph Dalton Hooker (Sir William's son) in tribute to his father's influence and work in the field of botany.