At intervals the trees lost their icy covering, and the bulrushes and underbrush were bare; but the lake lay frozen and hard beneath the sun.
On the Sierra the underbrush is characterized by the pungent manzanita, the California buckeye and the chamiso; the last two growing equally abundantly on the Coast Range.
A low blueberry (Vaccinium myrtilis) forms a thick underbrush in much of the forest.
In the forest regions of eastern Washington the underbrush is light, but grasses and a great variety of flowering plants abound.
The underbrush will impede the progress of the hunted animal.