'Glyceria fluitans' definitions:

Definition of 'Glyceria fluitans'

From: GCIDE
  • manna grass \manna grass\ n. (Bot.), Any of several tall slender grasses of the genus Glyceria. They have long loose panicles, have a sweet flavor or odor, and grow in moist places. Nerved manna grass is {Glyceria nervata}, and Floating manna grass is Glyceria fluitans. [1913 Webster + WordNet 1.5]