A thorny climbing vine of the smilax family with prickly stems, small flowers, and blue-black berries, common in woodlands.
From green + brier. Also called catbrier or bullbrier, this plant is native to North America and gets its name from the perpetually green foliage and sharp thorns characteristic of the genus Smilax.
Greenbriers are almost impossible to hack through once they've tangled across a forest path—their thorny, woody stems can persist for decades and create living barriers that protect wildlife and keep hikers very humble!
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