Sarracenia purpurea wani nau'in tsiro ne mai cin nama wanda aka fi sani da shukar ciyawar purple. Kalmar "Sarracenia" tana nufin nau'in tsire-tsire na Arewacin Amurka, yayin da "purpurea" yana nufin "purple" a cikin Latin, yana nufin launin shuɗi na shuka. Ita wannan shuka tana da ganyen tubular, waɗanda ake amfani da su don kamawa da narkar da kwari da sauran ƙananan ganima. Yana da asali ga ƙasa mai ƙasƙanci, ƙasa mai acidic a Arewacin Amurka, daga Labrador zuwa Florida, da yamma zuwa Texas da Manitoba.