The phrase "a patch of grassland" is correct and usable in written English.
You can use it to describe a small area of land covered with grass, often in a natural or rural setting.
Example: "The children played happily in a patch of grassland near the riverbank."
Alternatives: "a stretch of grass" or "a piece of grassland."
On a patch of grassland outside the old hotel, locals have installed two rosebeds and various plants (though someone keeps nicking the conifers).
As the sun begins to set in Lopé, a small group of elephants are spotted venturing into a patch of grassland near the edge of the forest.
But as he stood on a patch of grassland and surveyed the site under the light of a winter sunset, he added that by June people would be golfing and playing there.
Behind the house lay a patch of hilly grassland, near a creek.
I pitched my tent on a patch of rough grassland on the waterfront in Barra's main town of Castlebay.
Several blocks north, Monique Aiuto, 36, was playing with her toddler son, Isaiah, on a patch of manicured grassland bordering Newtown Creek.
Then on our way home, beside the footpath in a patch of sunlit grassland among trees, we found them: two magnificent flower spikes surrounded by speedwells, pignut and meadow cranesbill, an association almost as unlikely as the orchid itself.
Simply imagine a patch of dry grassland, the whole border of which is ignited at one moment in time.
As persistent rain fell on a cold night in New York City, my tent protected me from the moisture while I camped on a weedy patch of grassland surrounded by miles of concrete on an old airstrip, not far from the city's John F Kennedy Airport (JFK).
So far, leaproach has been found only in a small patch of grassland in Table Mountain National Park in Cape Town.
Around 10km from the nearest village on a savannah-like patch of grassland on a bend in the Preach Tachan River, Cardamom Camp feels enticingly remote – but it's not a place that scrimps on creature comforts.
