Catalogue › FlowersHelianthellaEvery species of the genus Helianthella in the catalogue.California helianthella (Helianthella californica)Mt. Diablo helianthella (Helianthella castanea)Purpledisk helianthella (Helianthella microcephala)Parry's dwarf-sunflower (Helianthella parryi)Aspen Sunflower (Helianthella quinquenervis)