1) Family juncaceae 2) Liliopsid family 3) Monocot family 4) Rush family 
The Juncaceae, the rush family, are a monocotyledonous family of flowering plants of eight genera and about 400 species. Members of the Juncaceae are slow-growing, rhizomatous, herbaceous plants, and they may superficially resemble grasses and sedges. They often grow on infertile soils in a wide range of moisture conditions. The most well-known an...
(from the article `Cyperaceae`) ...are similar in appearance to grasses (family Poaceae) and placed in the same order, there is a growing body of evidence that suggests that the ...
[n] - tufted herbs resembling grasses: rushes