Species: Utricularia intermedia

Flat-leaved Bladderwort is a perennial aquatic herb with submerged stems, leaves, bladders, overwintering buds, and emergent flowers. The plants have slender stems with numerous, crowded, finely dissected leaves. The leaves are mostly 0.5-2 cm long, flattened, and have several linear divisions all of about the same width and abruptly tapering or blunt at the tip. Bladders, which trap small aquatic animals for the plant's nourishment, are borne on separate specialized branches. Two to four small snapdragon-like flowers are borne on short pedicels on a 4-15 mm long, erect, leafless scape which holds them out of the water. Flowers have an inconspicuous, two-lobed calyx and a bright yellow, two-lipped corolla. The lower corolla lip is usually 4-8 mm long; underneath, it has a spur which is half or more as long as the entire lip; above, it has a prominent raised palate. The upper corolla lip is about half as long as the lower lip. The mature fruits are few seeded, dry, globular capsules borne on erect pedicels.