<unk> , commonly known as the Guayule (/[invalid input: 'icon']ɡwaɪˈuːliː/ or /waɪˈuːliː/, as in Spanish), is a flowering shrub in the aster family, Asteraceae, that is native to the southwestern United States and northern Mexico. It can be found in the US states of New Mexico and Texas and the Mexican states of Zacatecas, Coahuila, Chihuahua, San Luis Potosí, Nuevo Leon, and Tamaulipas. The plant can be used as an alternate source of latex that is also hypoallergenic, unlike the normal Hevea rubber.  In pre-Columbian times, the guayule was a secondary source of latex for rubber, the principal source being the Castilla elastica tree.  The name "guayule" derives from the Nahuatl word ulli/olli, "rubber".
Parthenium argentatum
Exacum affine
Pygeum africanum
Teucrium polium
Podophyllum peltatum
Brugia timori
Rhodiola rosea
Amanita phalloides