Other common names are "False Daisy" and "Tattoo Plant." The latter name refers to the fact that the juice of Yerba de Tajo can be used to make blue tattoos. This plant is used in Chinese medicine and has been found to function as an antidote to the venom of Rattlesnakes. Apparently, when an aqueous solution of the plant juice is injected into the affected muscle tissue, this reduces the hemorrhaging caused by the venom. Yerba de Tajo resembles one of the white-flowered Aster spp. (Asters), but its flowerheads have much shorter ray florets and there is no tuft of hairs attached to each achene. The flowerheads of Galinsoga spp. (Peruvian Daisies) have short ray florets, but they are widely spaced and much fewer in number than the ray florets of Yerba de Tajo.