Metrosideros sclerocarpa, commonly known as the mountain rose, is a flowering plant in the family Myrtaceae. It is endemic to Lord Howe Island.
It is a small tree, growing to in height. The leathery ovate to elliptic leaves are 30âÂÂ65 mm long and 17âÂÂ32 mm wide. The bright red brush-like flowers have filaments 15âÂÂ20 mm long. The fruits are 6âÂÂ7 mm long. The flowering season is from December to February.
The plant is endemic to Australia's subtropical Lord Howe Island in the Tasman Sea. It occurs mainly near watercourses, below an elevation of about 300 m, in the southern mountains of the island.