its leaves glabrous. Distribution and habitat Subspecies willsii occurs in the south-west of the Northern Territory and adjacent areas of South Australia where it grows on red sand plains, sand dunes and the swales between them. It is also found in the Central Ranges biogeographic region of Western Australia. Subspecies integrifolia is widespread in the sand dune systems of the southern part of the Northern Territory, western South Australia and the Central Ranges, Gibson Desert and Great Victoria Desert biogeographic regions of Western Australia There is one record from far western Queensland. Conservation Both subspecies of E. willsii are classified as "not threatened" by the Western Australian Department of Parks and Wildlife and as of "Least Concern" by the Northern Territory Government Territory Parks and Wildlife Conservation Act. Use in horticulture Eremophila willsii is often a spindly shrub but its growth form is compensated for by its striking flowers. It can be propagated from cuttings in sand, especially if provided with bottom heat and intermittent mist. It grows best in well-drained soil in a sunny position, rarely requires watering, even during a long dry spell and is moderately frost tolerant. References willsii Eudicots of Western Australia Flora of the Northern Territory Flora of Queensland Flora of South Australia Plants described in 1862 Endemic flora of Western Australia Taxa named by Ferdinand von Mueller