Tuesday, August 10, 2010

What's a mangrove?

What is a mangrove, anyway?

Many people think they don't know what mangroves are, but you have probably seen them before. The most recognizable ones look like the picture below of Rhizophora mangle, or red mangrove. Other types of mangroves lack these characteristic prop roots, but are still mangroves.

Mangroves are a group of plants that are not all closely related, but defined by a few common features: they can grow in saltwater and have special adaptations that allow them to do so; they are trees; they live in the intertidal zone but nowhere else. Mangroves are fascinating plants because they have to deal with salt stress, and the stress of growing in flooded soils where oxygen is scarce.

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