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Greater bladderwort Utricularia vulgaris

A rootless, free-floating and carnivorous aquatic plant of ponds, ditches and fens. It has distinctive yellow flowers, and uses the dense mat of stems, leaves and bladders it produces to float in water.

Conservation status

Widespread but only locally common in the UK.

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Details

Did you know? Bladderworts produce tiny bladders or ‘traps’ which they use to catch their prey. The traps work like a vacuum – when an insect touches the bristles on the outside of the bladder, the trap door opens and the little creature is sucked inside. Prey items, such as tiny crustaceans, larvae and worms may account for 50% of an individual plant’s biomass!
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