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Hygrophytes (literally  wet plants , from Greek : hygros = 'moist' and phyton = 'plant') are plants that specialize in wetlands due to their physiology and morphology .

They are often characterized by large, thin leaves with particularly prominent stomata . These exposed stomata enable the plants to give off a great deal of water through evaporation ( transpiration ). Fissures of water ( hydathodes ) enable some plants to excrete water in the form of drops ( guttation ) when the air is saturated with water vapor and transpiration is not possible.

The cross-section of a typical hygrophyte leaf shows a thin outer layer of cells ( epidermis ) with a thin extracellular cuticle . The intercellular space is wide. The leaves of the hygrophytes even have living hairs ( trichomes ), which are hair-like leaf structures made from vital plant cells to enlarge the surface of the leaf. This design enables increased release of water to the environment.

An example of a hygrophyte is the marsh marigold .


  1. chungo.de: Blatt_2_Folie_Vertiefung.pdf (application / pdf-Objekt; 2.7 MB) , accessed on April 20, 2011.

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Wiktionary: Hygrophyt  - explanations of meanings, word origins, synonyms, translations