Helianthella, the little sunflower, is a genus of North American plants in the sunflower family. Species 1. \n* Helianthella californica A.Gray - California, Nevada, Oregon 2. \n* Helianthella castanea Greene - San Francisco Bay region 3. \n* Helianthella ciliata S.F.Blake - Chihuahua 4. \n* Helianthella durangensis B.L.Turner - Durango 5. \n* Helianthella gypsophila B.L.Turner - Nuevo León, Coahuila 6. \n* Helianthella mexicana A.Gray - San Luis Potosí, Zacatecas, etc 7. \n* Helianthella microcephala (A.Gray) A.Gray - Arizona, New Mexico, Colorado, Utah 8. \n* Helianthella parryi A.Gray - Arizona, New Mexico, Colorado, Utah 9. \n* Helianthella quinquenervis (Hook.) A.Gray - from Coahuila to Oregon + Montana 10. \n* Helianthella uniflora (Nutt.) Torr. & A.Gray - from New Mexico t