Acacia cyclops, commonly known as coastal wattle, cyclops wattle, one-eyed wattle, red-eyed wattle, redwreath acacia, western coastal wattle, and as rooikrans or rooikrans acacia in South Africa, is a species of flowering plant in the family Fabaceae. The Noongar peoples of Western Australia know the plant as wilyawa or woolya wah. It is a dense shrub or tree with narrowly oblong to elliptic phyllodes, spherical heads of golden yellow flowers, and linear, leathery pods with colourful seeds. The species is native to Australia, and is distributed along the west coast of Western Australia as far north as Leeman, and along the south coast into South Australia. It has been introduced to several other countries.

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