The family Poaceae or Gramineae (grasses) contains about 780 genera and around 12,000 species. Represented on Crete by 97 genera and 243 species, (30 of which are introduced). 3 are endemic.
The family Cyperaceae (sedges) with about 90 genera, and over 5.500species. Represented on Crete by 12 genera and 45 species, (4 of which are introduced). none are endemic.
The family Juncaceae (Rushes) has 8 genera and about 464 known species. Represented on Crete by 12 genera and 45 species, (4 of which are introduced). none are endemic.
The family Juncaginaceae (arrowgrass) includes 3 genera with a total of 34 known species. Represented on Crete by 1 genus and 1 species.