Byblis liniflora is a species native to tropical northern Australia. It is named for its flowers, which resemble that of flax.

The species is small to medium in size, reaching up to around 15 cm in diameter and height. The plants usually stay compact in morphology. The leaves are always light green in colour and are completely covered in small translucent gland-tipped hairs. These hairs collapse on themselves when touched by prey, bringing the captured insects in contact with the surface of the leaf for digestion. The flowers are produced at the end pedicels that are pretty much identical to the leaves. The petals of the bloom are light purple, with serrated edges. The anthers (yellow pollen bearing structures) are shorter than the filaments (the long appendage attaching the anther to the body of the flower).

B. liniflora grows in comparatively drier habitats within their distribution which are moistened by the wet season rains but hardly waterlogged. I observed the species growing in cracks on a large sandstone cascade in the Litchfield National Park, with the plants germinating after the water of the creek recedes and continuing to grow until they desiccate in the dry season. The species is an annual and persists through the dry season as seed.

Byblis liniflora, along with B. aquatica, is distinguished from other species within the genus by examining the blooms. In these two species, the anther is shorter than the filament. B. liniflora is sympatric with B. aquatica around Darwin and Far North Queensland, but can be recognised by its compact morphology (B. aquatica grows a long sprawling stem), bright green colouration (B. aquatica usually has a reddish blush) and preference for drier niches (B. aquatica grows in shallowly flooded areas).