What is "chrysactinia"

Chrysactinia A. Gray is a genus of flowering plants in the sunflower family, native to Mexico and to the southwestern United States.

1. Chrysactinia acerosa S.F.Blake - San Luis Potosí, Nuevo León, Zacatecas
2. Chrysactinia lehtoae D.J.Keil - Sinaloa
3. Chrysactinia luzmariae Rzed. & Calderón - Guanajuato
4. Chrysactinia mexicana A.Gray - Texas, New Mexico, Aguascalientes, Chihuahua, Coahuila, Durango, Guanajuato, Hidalgo, México State, Nuevo León, Oaxaca, Puebla, Querétaro, San Luis Potosí, Zacatecas, Tamaulipas, Veracruz
5. Chrysactinia pinnata S.Watson - Coahuila, Nuevo León, Querétaro, San Luis Potosí, Tamaulipas
6. Chrysactinia truncata S.Watson - Nuevo León, Coahuila, San Luis Potosí, Tamaulipas, Zacatecas