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(ung?kar'e-a) [L. uncus, hook]
A genus of tropical Asian woody vines.

Uncaria guianensis

Uncaria tomentosa.

Uncaria tomentosa

A species used medicinally for its extracts, which include alkaloids used as an anti-inflammatory for arthritis and also for their effects on thinking, concentration, and sedation. It has also been promoted as a treatment for AIDS but without scientific validation.
Synonym: cat's clawUncaria guianensis