Polanisia dodecandra is a species of flowering plant in the Cleome family, Cleomaceae, known by the common name redwhisker clammyweed, or western clammyweed, although there are other Polanisia species called clammyweed. It is an annual plant that is found in many types of habitat throughout much of Canada and the United States. It can be found elsewhere as an introduced species. There are several subspecies of 'Polanisia dodecandra, including: