Swainsona formosa
{{Speciesbox | name = Sturt's desert pea | image = Sturts desert pea.jpg | image_caption = Sturt's desert pea, at Melbourne Zoo | genus = Swainsona | species = formosa | authority = (G. Don) Joy Thomps. | synonyms = Clianthus dampieri <small>Lindl.</small> Clianthus formosus (G.Don) Ford & Vickery Clianthus oxleyi A.Cunn. ex Lindl. Clianthus speciosus (G.Don) Asch. & Graebn. Colutea novae-hollandiae Walp. Donia formosa G.Don Donia speciosa G.Don Willdampia formosa (G.Don) A.S.George | synonyms_ref = }}Swainsona formosa, Sturt's desert pea, is an Australian plant in the genus Swainsona, named after English botanist Isaac Swainson, famous for its distinctive blood-red leaf-like flowers, each with a bulbous red or black centre, or "boss". It is one of Australia's best known wildflowers. It is native to the arid regions of central and north-western Australia, and its range extends into all mainland Australian states with the exception of Victoria. Description Sturt's desert pea is a member of Fabaceae, subfamily Faboideae. It has pinnate, grey-green leaves which are arranged spirally on the main axis of the plant, and in two opposite rows (distichous) on lateral stems. Flower Its flowers are so different from its relatives that it is almost unrecognisable as a member of