Utricularia intermedia, commonly known as flatleaf bladderwort or intermediate bladderwort, is a small perennial carnivorous plant native to bogs, fens, and wetlands in North America, Asia, and Europe. It often grows affixed to substrates in its aquatic environment or survives floating in the water. This species typically reaches only a few inches in height and spreads to form a mat of foliage and bladders. The bladders, which are small, underwater traps, capture tiny aquatic organisms to supplement the plant’s nutrient intake. Flatleaf bladderwort blooms from late spring to early summer, producing small, yellow flowers that are not particularly showy but are interesting upon close inspection due to their intricate structure.

Flatleaf bladderwort is valued for its unique carnivorous nature and can be an intriguing addition to water gardens, bog gardens, or contained aquatic setups. It requires consistently wet or aquatic conditions and prefers acidic, nutrient-poor soils, which mimic its natural boggy habitat. Full sun to part shade is ideal for promoting flowering. While not commonly cultivated, it can be a conversation piece for enthusiasts of carnivorous plants. It is generally low-maintenance, but care should be taken to provide the correct water and soil conditions to mimic its natural environment.CC BY-SA 4.0