Ciyawan Pampas wani nau'in ciyawa ce babba, wacce ke dawwama a Kudancin Amurka, musamman yankunan pampas na Argentina da Uruguay. Sunan kimiyya na ciyawa pampas shine Cortaderia selloana. Shahararriyar shuka ce ta ado a cikin shimfidar wuri saboda tsayinta tsayi, fuka-fukan fuka, da taurinsa. Ciyawa na iya girma har zuwa ƙafa 10 tsayi kuma tana da dogayen ganye, kunkuntar ganye masu kaifi. Tsayinsa na furen na iya kaiwa ƙafa 15 tsayi kuma ana ɗaure shi da ruwan hoda-fari ko ruwan hoda da ke fure a cikin fall.