Utricularia singeriana is a bladderwort endemic to the Northern Territory that is notable for its striking purple and burgundy coloured flowers.

Utricularia singeriana is a medium sized bladderwort with blooms that reach around 3cm in width. The lower corolla lip is flared into a rounded skirt-like shape. The upper corolla lip is large and broad. The spur is stubby and broad at the base. The front of the blooms are coloured a luxurious violet purple with a metallic shimmer in full sun. The backsides of the petals are burgundy in colour. The centre of the blooms have a yellow patch at the palate. Flowers are well raised on a fleshy stem that is about 20-30cm tall.

The species grows in peaty soils within wet drainage lines amongst knee high grass. It is distributed from the lowland plains SW of Darwin towards Pine Creek and also at Groote Eylandt. It blooms in the later parts of the wet season, from around late February onwards. The plant usually dies as soon as its habitat begins to dry out at the start of the dry season.

Utricularia singeriana is unlikely to be confused with any other bladderwort in the field. The shape of the flower bears a superficial resemblance to U. lasiocaulis but is distinguished by its larger size, lack of ridges at the palate and broad spur (U. lasiocaulis is a smaller and shorter plant with two raised yellow ridges at the palate and a thinner spur). It was previously confused with Utricularia baliboongarnang from Western Australia but the two species do not resemble each other in person and do not overlap in range.