Smilax lasioneura, the Blue Ridge carrionflower, is a North American species of flowering plants in the greenbriar family. It is widespread across central Canada and the central United States, from Ontario, Manitoba and Saskatchewan south to Texas, Louisiana, and Florida.

Smilax lasioneura is an erect, branching herb up to 250 cm (5 feet) tall. Flowers are small but numerous, in umbels of many flowers. Berries are round, blue to almost black.

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