Daviesia cordata, also known as bookleaf, is a species of flowering plant in the family Fabaceae. It is native to the south-west of Western Australia. It forms an erect shrub, growing to between 0.5 and 2 metres in height. The species was first formally described by botanist James Edward Smith in 1808 in The Cyclopaedia. The type specimen that his description was based on was collected from King George Sound.