Hibbertia brennanii
Hibbertia brennanii is a species of flowering plant in the family Dilleniaceae and is endemic to the Arnhem Land escarpment. It is a low, spreading sub-shrub with hairy foliage, elliptic to lance-shaped leaves and pale yellow flowers arranged singly in leaf axils, with ten to twelve stamens arranged in groups around the two carpels. Description. "Hibbertia brennanii" is a low, spreading sub-shrub that typically grows to a height of up to , its foliage more or less densely hairy, the branches wiry at first, later stiffly woody. The leaves are elliptic to lance-shaped with the  narrower end towards the base, mostly long and wide on a petiole up to long. The flowers are arranged singly in leaf axils on a stiff, thread-like peduncle long, with linear bracts long. The five sepals are joined at the base, the two outer sepal lobes long and the inner lobes long. The five petals are egg-shaped to wedge-shaped with the narrower end towards the base, pale yellow, long with two lobes. There are ten to twelve stamens arranged in groups around the two carpels, each carpel with two ovules. Flowering occurs from March to May. Taxonomy . "Hibbertia brennanii" was first formally described in 2010 by Hellmut R. Toelken in the "Journal of the Adelaide Botanic Gardens" from specimens collected by Kym G. Brennan in Kakadu National Park in 1999. The specific epithet ("brennanii") honours the collector of the type specimens. Distribution and habitat. This hibbertia grows in rock crevices in heath on top of the Arnhem Land escarpment in the Northern Territory. Conservation status. "Goodenia brennanii" is classified as "vulnerable" under the Northern Territory Government Territory Parks and Wildlife Conservation Act 1976 and is threatened by human activities and inappropriate fire regimes.