A green-stemmed North American vine of the lily family, typically prickly and with blue-black berries. Also called catbrier.
- Genus Smilax, family Liliaceae: several species, in particular the woody and thorny S. rotundifolia.
- The undergrowth is often dense with dwarf palmettos and with such vines as earleaf, saw greenbriers (both very prickly), muscadine, and summer grape, all tough on hikers.
- Common midstory and understory species included red maple, American beech, greenbrier, and spicebush.
- Because the canopy is relatively open here, the vegetation is often overgrown with rattan vine, greenbrier, wild grape, pepper vine, trumpet creeper, Virginia creeper, and poison ivy.
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