Hibbertia decumbens is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted area of New South Wales. It is a spreading, almost prostrate shrub with hairy foliage, egg-shaped to almost round leaves, and yellow flowers usually with nine to twelve stamens arranged in a group on one side of two carpels.
Hibbertia decumbens is a spreading to almost prostrate shrub that typically grows to a height of up to, the foliage covered with simple and star-like hairs. The leaves are egg-shaped with the narrower end towards the base to almost round, long and wide on a petiole long. The flowers are arranged on the ends of branchlets on a peduncle long, with linear bracts long. The five sepals are joined at the base, the sepal lobes long. The five petals are egg-shaped to wedge-shaped with the narrower end towards the base, bright yellow, long with a notch at the tip. There are usually nine to twelve stamens arranged in one group alongside the two woolly-hairy carpels, each carpel with two ovules. Flowering occurs from October to January.[1] [2]
Hibbertia decumbens was first formally described in 1998 by Hellmut R. Toelken in the Journal of the Adelaide Botanic Gardens from specimens collected near Wentworth Falls in 1987.[3] The specific epithet (decumbens) means prostrate, but with rising tips.[4]
This hibbertia grows on sandstone ledges in a few locations in the Blue Mountains.