Hottonia palustris wani nau'in tsiro ne na ruwa wanda aka fi sani da "water violet" ko "featherfoil". Nasa ne na dangin Primulaceae kuma asalinsa ne ga wuraren dausayi da ruwa mara zurfi a Turai, Asiya, da Arewacin Amurka. Itacen yana da ganyen gashin fuka-fukan da ke ƙarƙashin ruwa kuma yana samar da ƙananan, farare masu laushi ko furanni masu launin ruwan hoda a kan dogayen kututture waɗanda ke tashi sama da saman ruwa. Sunan "Hottonia" yana girmama Robert Hotton, masanin kiwo na Birtaniya a ƙarni na 18, yayin da "palustris" yana nufin "ƙaunar marsh" a cikin Latin, yana nufin mazaunin shuka.