Coelorachis rugosa
Common names: Wrinkled jointgrass
Endemic
Synonyms: Mnesithsa rugosa Manisuris rugosa
Treatment appears in FNA Volume 25. Treatment on page 688.
Plants cespitose. Culms 60-120 cm, compressed-keeled. Sheaths compressed-keeled; ligules 0.5-1 mm. Rames 3-9.5 cm; rachises distinctly indented adjacent to the sessile spikelets. Sessile spikelets 3-4 mm; lower glumes transversely rugose; upper lemmas and paleas 2-3 mm. Pedicellate spikelets 1-3 mm. Caryopses about 2 mm, broadly ellipsoid. 2n = unknown.
Distribution
Md., N.J., Miss., Tex., La., Del., Ala., N.C., S.C., Va., Ark., Ga., Fla.
Discussion
Coelorachis rugosa is endemic to the southeastern United States. It grows in moist to wet areas in prairies, bogs, and pine woods, especially flatwoods and savannahs.
Selected References
None.
Lower Taxa
None.