It is a perennial herb spreading to form a mat or low clump.

Fortunately the snow between the low clumps of undergrowth helped somewhat!

It is a perennial found in low clumps approximately 10 - 25 centimeters in height.

The little low clumps of bush and brush by which he measured his progress were all the same.

The low clumps of buildings petered out three or four miles before they were due to hit the bridge.

Now the fellow had run to a slightly lower clump of rocks and seemed to be peering furtively over it.

This is an annual grass with purple-tinted green stems which forms mats and low clumps near water.

It is barely covered with low and sparse clumps of dryland vegetation.

Insects whirred up from low clumps of dry brush.

Forms low clumps not more than a few centimetres high.