description Common Bladderwort Overview
Common bladderwort, Utricularia vulgaris, is a free-floating aquatic carnivorous plant found in still or slow-moving freshwater across much of Europe, Asia, and northern Africa. Its submerged stems carry numerous tiny bladder traps that create suction and capture small aquatic organisms when trigger hairs are disturbed. Yellow, two-lipped flowers rise above the water during the growing season, allowing pollination without interfering with the submerged trapping system.
insights Ranking position
Common Bladderwort ranks #30 of 341 in the Wildflower ranking, behind Prairie Smoke, ahead of Wild Blue Phlox.
help Common Bladderwort FAQ
How does common bladderwort catch prey underwater?
Utricularia vulgaris carries tiny bladder traps on its submerged shoots. Each trap creates suction and rapidly draws in small aquatic organisms when trigger hairs near its entrance are disturbed.
Does common bladderwort have roots?
Common bladderwort is a free-floating aquatic plant without the conventional root system used by most flowering plants. Its submerged stems absorb nutrients from the water while its traps supplement them with captured prey.
What does common bladderwort eat?
Its bladders capture tiny freshwater organisms such as water fleas, protozoans, and small insect larvae. Despite being carnivorous, Utricularia vulgaris also photosynthesizes like other green plants.
Can common bladderwort harm fish in a pond?
Its traps are designed for microscopic or very small aquatic prey, not adult fish. The yellow flowers rise above the water while most of the carnivorous plant remains submerged.
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