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briar,name sometimes given any thorny plant, more specifically the sweetbriersweetbrier,
[O. Fr. from Lat.,=needle], wild rose of Europe (Rosa eglanteria), cultivated and now naturalized in the United States.
..... Click the link for more information. , and the greenbrier. French brier, or brierroot, is a name for the root of the European white heathheath,
in botany, common name for some members of the Ericaceae, a family of chiefly evergreen shrubs with berry or capsule fruits. Plants of the heath family form the characteristic vegetation of many regions with acid soils, particularly the moors, swamps, and mountain slopes
..... Click the link for more information. so widely used in the manufacture of smoking pipes.
any of various thorny shrubs or other plants, such as the sweetbrier and greenbrier