About Levenhookia dubia Sond.
Levenhookia dubia, commonly known as the hairy stylewort, is a dicotyledonous plant in the genus Levenhookia of the family Stylidiaceae. It is an ephemeral annual plant, growing between 2 and 6 centimetres (0.79 to 2.36 inches) tall. It bears obovate leaves that are typically 2 to 5 millimetres (0.079 to 0.197 inches) long. Its flowers are white, and bloom from September to October within its native range. L. dubia is most closely related to Levenhookia sonderi, which was previously classified as a variety of L. dubia. The species is endemic to Australia, with native populations occurring in Western Australia, South Australia, New South Wales, and Victoria. It grows in sandy soils on granite outcrops. While L. dubia may once have grown in Tasmania, it is currently listed as extinct there under the Tasmanian Threatened Species Protection Act 1995. Only one specimen of this species from Tasmania is held by the Tasmanian Herbarium; it was collected by W. Archer, who did not record a collection date or locality on the specimen sheet. In a 1903 assessment of Tasmanian flora, L. Rodway suggested this species could be found near Brighton, on Mount Field, and on the Bass Strait Islands, but these records are considered dubious and are not accepted as reliable.