Cat's Claw, aka Uncaria Tomentosa, is a wood vine that has claw-shaped thorns it uses to climb trees, sometimes reaching heights upwards of 100 feet. A native to tropical climates in Central and South America, Cat's Claw Bark has been a vital ingredient in indigenous healing traditions for thousands of years. Typically, Cat's Claw Bark is extracted, infused, or decocted into a tea.