Grevillea polychroma , commonly known as Tullach Ard Grevillea, is a species of the plant genus Grevillea

Grevillea

Grevillea is a diverse genus of about 360 species of evergreen flowering plants in the protea family Proteaceae, native to Australia, New Guinea, New Caledonia, and Sulawesi. It was named in honour of Charles Francis Greville. The species range from prostrate shrubs less than 0.5 m tall to trees...

. It is endemic to the state of Victoria

Victoria (Australia)

Victoria is the second most populous state in Australia. Geographically the smallest mainland state, Victoria is bordered by New South Wales, South Australia, and Tasmania on Boundary Islet to the north, west and south respectively....

 in Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. The taxon was first formally described as a subspecies of Grevillea brevifolia

Grevillea brevifolia

Grevillea brevifolia, commonly known as Cobberas Grevillea, is a species of the plant genus Grevillea. It is native to the states of Victoria and New South Wales in Australia. The red flowers appear between November and December in the species native range...

in 2000. It was promoted to species status in 2005. The species is listed as "Rare in Victoria" on the Department of Sustainability and Environment's Advisory List of Rare Or Threatened Plants In Victoria.