| gramineae | (n) the grasses: chiefly herbaceous but some woody plants including cereals; bamboo; reeds; sugar cane, Syn. Poaceae, Graminaceae, family Graminaceae, family Gramineae, family Poaceae, grass family |
| scheuchzeriaceae | (n) a family of monocotyledonous bog herbs of order Naiadales, Syn. family Scheuchzeriaceae, family Juncaginaceae, arrow-grass family, Juncaginaceae |
| xyridaceae | (n) plants of tropical to temperate regions; usually in wet places, Syn. family Xyridaceae, yellow-eyed grass family |
| zosteraceae | (n) used in some classifications: essentially equivalent to Potamogetonaceae, Syn. family Zosteraceae, eelgrass family |
