Plants cespitose. Culms 60-120 cm, compressed-keeled. Sheaths compressed-keeled,
glabrous; blades to 31 cm long, to 7.8 mm wide, folded or flat, glabrous.
Rames 4-8 cm; rachises not or only slightly indented adjacent to
the sessile spikelets. Sessile spikelets 3.3-4.3 mm long, 1.3-2 mm wide;
lower glumes smooth or sparsely and shallowly transversely rugose, keels
narrowly winged. Pedicellate spikelets 1.9-2.6 mm, reduced to scales. 2n
= unknown.
Coelorachis tuberculosa is an uncommon species, endemic to the southeastern
United States. It grows in moist to wet areas such as bogs and pine woods, especially
flatwoods and savannahs. s