hydropiper

Etymology
From.

Noun

 * 1) Knotweed of species  (formerly ).

Translations

 * Basque: ur-piper
 * Bulgarian: водно пипериче, лютивче, воден пипер, маясълче
 * Catalan: pebre de l'aigua
 * Czech: rdesno peprník
 * Danish: bidende pileurt
 * Dutch:
 * Finnish: katkeratatar
 * Georgian:
 * German: Wasserpfeffer
 * Greek:
 * Ancient: ὑδροπέπερι
 * Norwegian: vasspepper
 * Ottoman Turkish: صو ببری
 * Portuguese: erva-de-bicho
 * Russian: водяно́й пе́рец, горе́ц пе́речный
 * Serbo-Croatian: vodeni papar,
 * Slovak: horčiak pieprový
 * Slovene: vodna paprika
 * Spanish: pimienta del agua
 * Swedish: bitterpilört
 * Turkish: su biberi
 * Welsh: tinboeth