Philotheca hispidula is a flowering plant in the citrus family and is endemic to New South Wales. It is a small shrub with narrow egg-shaped to wedge-shaped leaves that are glandular-wavy on the edges, and white or pale pink flowers arranged singly in leaf axils.
Philotheca hispidula is a shrub that typically grows to a height of about with slightly glandular-warty, finely bristly branchlets. The leaves are narrow egg-shaped to narrow wedge-shaped with the narrower end towards the base, long and wide. The flowers are usually arranged singly in leaf axils on a finely bristly peduncle long and a pedicel long. There are five semi-circular, fleshy-centred sepals about long and five broadly elliptical white or pale pink petals about long with a glandular keel. The ten stamens are slightly hairy. Flowering occurs in spring and the fruit is about long with a beak about long.[1] [2] [3]
This species was first formally described in 1827 by Sprengel from an unpublished description by Franz Sieber and the description was published in Systema Vegetabilium.[4] In 2005 Paul G. Wilson changed the name to Philotheca hispidula in the journal Nuytsia.[5] [6]
Philotheca hispidula grows in forest on sandstone in the Blue Mountains and in the Sydney region.