A pipe for smoking, made from the roots of that shrub.
The white heath (Erica arborea), a thorny Mediterranean shrub.
Any of many plants with thorny stems growing in dense clusters, such as many in the Rosa, Rubus, and Smilax genera.
Anything sharp or unpleasant to the feelings.
The colour forest green.
A dense uncultivated tract of trees and undergrowth, larger than woods.
A defined area of land set aside in England as royal hunting ground or for other privileged use; all such areas.
Any dense collection or amount.
A group of domains that are managed as a unit.
A graph with no cycles; i.e., a graph made up of trees.
To cover an area with trees.