Hibbertia hypericoides, commonly known as yellow buttercups,[2] is a species of flowering plant in the family Dilleniaceae, and is endemic to the south-west of Western Australia.

It is usually a spreading shrub with linear to elliptic or egg-shaped leaves, and yellow flowers, usually with ten to fifteen stamens arranged in a cluster on one side of the two densely hairy carpels.

[2][3] This species was first formally described in 1817 by Augustin Pyramus de Candolle who gave it the name Pleurandra hypericoides in his book Regni Vegetabilis Systema Naturale.

[7] In 1995, Kevin Thiele and Geoff Cockerton described two subspecies in the journal Nuytsia and the names are accepted by the Australian Plant Census: Subspecies hypericoides grows in a wide variety of habitats including woodland and shrubland and is widely distributed from Dongara to Augusta and inland as far as Wongan Hills.

Subspecies septentrionalis typically grows in kwongan and Banksia woodland and is found in two disjunct populations - one between Kalbarri and Dongara and the other inland from the Arrowsmith River.