Leafy Wallaby-grass

Rytidosperma bipartitum is an erect, tufted perennial up to 0.7 m (2+1⁄4 ft) high. Stem bearing the inflorescence, or culm, is smooth, slender and generally 4-noded. The lower part of the leaf containing the sheath usually smooth, with small membranous appendage on the top of the sheath (ligule) having short hairs. Leaf blade is 20 to 30 cm (7+7⁄8 to 11+3⁄4 in) long and 1 to 2.5 mm (1⁄16 to 1⁄8 in) wide, flat to loosely or closely rolled inwards, usually slightly hairy, bearing coarse and rough hairs. Inflorescence with a few to numerous spikelets, lanceolate or ovate in shape, 4 to 12 cm (1+5⁄8 to 4+3⁄4 in) long. Inflorescence can be spreading or contracted. Spikelets are 4 to 6-flowered, pale-greenish to straw in colour. Spikelet florets, which are each flower together with lemma and palea that enclose it, are shorter than the glumes (bracts at the base of the grass spikelet) except for the awns (fine bristle-like appendage). Glumes with membranous margins, 7 to 13 mm (1⁄4 to 1⁄2 in) long. …

R. bipartitum is a host of Sphaerodothella danthoniae, a sac fungus that produces black, shiny leaf spots that occasionally coalesce into straight to irregular lines in the leaf surface of several species of Rytidosperma.