Sphaerophysa salsula
 Sphaerophysa salsula is a species of flowering plant in the legume family known by the common names alkali swainsonpea Austrian peaweed and red bladder-vetch. It is native to Asia but it is known in many other parts of the world as an introduced species and often a noxious weed. It grows in cultivated land and disturbed habitat easily tolerating alkaline substrates.