Isocoma hartwegii is a Mexican plant species in the family Asteraceae. It has been found in the states of Jalisco, Zacatecas, Aguascalientes, Hidalgo, Guanajuato, and San Luis PotosÃÂ.
Isocoma hartwegii is a subshrub. Each flower head has 13-22 disc flowers but no ray flowers.