swamp(a permanently waterlogged area in which there is often associated tree growth; (an area of) wet, marshy ground • These trees grow best in swamp(s)); marsh(a periodically inundated area of low ground having shrubs and trees, with or without the formation of peat; (an area of) soft wet land • The heavy rainfall turned the land into a marsh); wash; letch; swampland; hag; ooze; slump; oozes; purgatory; marshland; mire; bog(wikipedia.orgPothead); backwater; fen(an area of low marshy land often covered with water); morass(часто перен.; a bog or swamp); slough; quagmire; quag; a froggy place; moss; flow rate
wadi("Even the rivers in Kush are brown, but for the blue moment when the torrents of a rainstorm boil murderously down a wadi; and the sudden verdure of the rainy season soon dons a cloak of dust" (John Updike. The Coup). (Даже ведь и река в Куще коричневая, и голубеет она лишь на короткое время в сезон дождей, когда невероятные ливни вдруг оживляют прибрежную зелень, чтобы вскорости уйти, однако, в болота и позволить лечь на все вокруг налету коричневой пыли. – Перевод Василия П. Аксенова.) CHichhan)