tussock
nounUK /ˈtʌs.ək/
US /ˈtʌs.ək/
A small, thick clump of grass or plants growing close together.
The rabbit hid behind a tussock of tall grass.
OTHER MEANINGS
2. A tuft of hair or feathers standing up.
A tussock of feathers stuck out from the bird's head.
3. A small raised mound or hillock of earth.
We walked over a tussock in the wet field.
4. A clump of sedge or coarse grass in a marsh or wetland.
The marsh was full of tussocks that made walking difficult.