Persoonia katerae is a species of plant in the family Proteaceae that is endemic to a small area on the coast of New South Wales, Australia. It is an erect shrub to small tree with smooth bark on the branches, narrow elliptic to lance-shaped leaves with the narrower end towards the base, and yellow flowers in groups of six to twenty-two on a rachis 30–160 mm (1.2–6.3 in) long.

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