Sphagnum moss can hold more than 20 times its dry weight in water
Peat-forming Sphagnum is a living sponge. Its cells and capillary spaces soak up water — commonly more than twenty times the moss’s dry mass — and keep bog surfaces saturated.
That waterlogging slows decay, builds peat, and creates acidic, low-oxygen habitats where few trees can invade.
A soft green carpet runs the hydrology of a wetland. Squeeze Sphagnum and you are holding the reason bogs stay wet for millennia.
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