vital for desert survival. This means that if domestically grown, they should either be planted in their intended final location, transplanted as soon as possible after germination, or grafted as a seedling on to a different root such as the bladder senna, Colutea arborescens. They do not tolerate disturbance of their roots but, once established in well-drained soil, require little and infrequent watering, and can withstand extreme heat and sunshine, as well as light frosts. Sturt's desert pea is not endangered, but it is illegal to collect specimens of the plant from Crown land without a permit. The plants must not be collected from private land without the written consent of the land owner. Use as emblem and icon Sturt's desert pea (described as Clianthus formosus'') was adopted as the floral emblem of the state of South Australia on 23 November 1961. Its iconic status in Australia, and particularly in South Australia, has ensured its use as a popular subject in artwork and photography, as well as a decorative motif, and in a range of commercial uses (such as the previous logo of BankSA). It appears in the logo of the National Parks and Wildlife Service, South Australia, as well as in its associated volunteer umbrella organisation, Friends of Parks. Sturt's Desert Pea has also made many appearances in prose and verse, as well as featuring in some aboriginal legends. Sturt's desert pea has appeared in several releases of Australian postage stamps depicting Australian floral emblems (issued in 1968, 1971 and 2005). The flower also features on the logo of Charles Sturt University, which is also named after the explorer. References External links South Australian Government Floral Emblem (official website) Australian emblems - South Australia (Australian National Botanic Gardens website) Aboriginal myth about the Sturt's Desert Pea Info Page from the Association of Societies for Growing Australian Plants (hosted by Charles Sturt University, New South Wales. Large image of Sturt's Desert Pea Sturt's Desert Pea Fact-sheet from Gardening Australia, a TV programme of the Australian Broadcasting Corporation. Oxford University Herbaria Sturt's Desert Pea costume (designed for the South Australian Centenary in 1936 by Thelma Thomas Afford, of Adelaide). formosa Fabales of Australia Rosids of Western Australia Flora of South Australia Flora of the Northern Territory Flora of Queensland Flora of New South Wales Emblems of South Australia Charles Sturt