Marsupella sparsifolia is a species of moss sink in them Gymnomitriaceae . The plants grow in black-green lawns, which are up to three inches high. The leaves are distant from each other and bar-shaped. Spread out, they are wide to heart-shaped. On one third of the leaf they are divided, the lobes are pointed or blunt. In the middle of the leaf cells are 12 to 16 × 20 microns in size, their corners are thickened. Each cell contains two to three oil bodies . The bracts are larger than the leaves. A perianth is available. The spores have a diameter of eight to twelve microns.