Brush

1. A term encompassing various species of shrubs or small trees usually considered undesirable for livestock or timber management. The same species may have value for browse, wildlife habitat, or watershed protection. 2. In viticultural usage, the broken ends of vascular bundles that remain attached to the pedicel when a berry is pulled off of a cluster, or the prunings left in a vine row.

Source
First definition from: Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.