Complete list of species
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| scientific name | common name(s) | image gallery |
| Helianthus microcephalus | Small Woodland Sunflower | |
| Helianthus mollis | Ashy Sunflower Downy Sunflower | |
| Helianthus neglectus | Neglected Sunflower | |
| Helianthus niveus | Desert Sunflower Showy Sunflower Silver Leaved Ssunflower | |
| Helianthus niveus ssp. canescens | Gray Desert Sunflower Showy Sunflower | |
| Helianthus niveus ssp. tephrodes | Algodones Sunflower Showy Sunflower | |
| Helianthus nuttallii | Nuttall's Sunflower | |
| Helianthus nuttallii ssp. nuttallii | Nuttall's Sunflower | |
| Helianthus nuttallii ssp. parishii | Los Angeles Sunflower Parish's Sunflower | |
| Helianthus nuttallii ssp. rydbergii | Rydberg's Sunflower | |
| Helianthus occidentalis | Fewleaf Sunflower Western Sunflower | |
| Helianthus occidentalis ssp. occidentalis | Fewleaf Sunflower | |
| Helianthus occidentalis ssp. plantagineus | Fewleaf Sunflower Shinner’s Sunflower | |
| Helianthus paradoxus | Paradox Sunflower Puzzle Sunflower Pecos Sunflower | |
| Helianthus pauciflorus | Stiff Sunflower Prairie Sunflower | |
| Helianthus pauciflorus ssp. pauciflorus | Stiff Sunflower | |
| Helianthus pauciflorus ssp. subrhomboideus | Stiff Sunflower | |
| Helianthus petiolaris | Prairie Sunflower Plains Sunflower | |
| Helianthus petiolaris ssp. fallax | Prairie Sunflower | |
| Helianthus petiolaris ssp. petiolaris | Prairie Sunflower | |
| Helianthus porteri | Confederate Daisy Stone Mountain Daisy Porter's Sunflower | |
| Helianthus praecox | Texas Sunflower | |
| Helianthus praecox ssp. hirtus | Dimmit Sunflower Texas Sunflower | |
| Helianthus praecox ssp. praecox | Texas Sunflower | |
| Helianthus praecox ssp. runyonii | Runyon's Sunflower | |
| Helianthus praetermissus | New Mexico Sunflower Lost Sunflower | |
| Helianthus pumilus | Little Sunflower | |
| Helianthus radula | Rayless Sunflower | |
| Helianthus resinosus | Resindot Sunflower | |
| Helianthus salicifolius | Willowleaf Sunflower Willow-leaved Sunflower | |
| Helianthus schweinitzii | Schweinitz's Sunflower | |
| Helianthus silphioides | Rosinweed Sunflower | |
| Helianthus simulans | Muck Sunflower Narrow-leaved Sunflower Swamp Sunflower | |
| Helianthus smithii | Smith's Sunflower | |
| Helianthus strumosus | Paleleaf Woodland Sunflower Paleleaf Sunflower Woodland Sunflower | |
| Helianthus tuberosus | Jerusalem Artichoke Sunchoke | |
| Helianthus verticillatus | Whorled Sunflower | |
| Helianthus ×ambiguus | Sunflower | |
| Helianthus ×brevifolius | Shortleaf Sunflower | |
| Helianthus ×cinereus | Sunflower | |
| Helianthus ×divariserratus | Sunflower | |
| Helianthus ×doronicoides | Sunflower | |
| Helianthus ×glaucus | Sunflower | |
| Helianthus ×intermedius | Sunflower | |
| Helianthus ×kellermanii | Sunflower | |
| Helianthus ×laetiflorus | Cheerful Sunflower | |
| Helianthus ×luxurians | Sunflower | |
| Helianthus ×multiflorus | Manyflower Sunflower | |
| Helianthus ×orgyaloides | Sunflower | |
| Helictotrichon mortonianum | Alpine Oatgrass Morton's Alpine Oatgrass Morton's False Alpine Oat Grass | |
| scientific name | common name(s) | image gallery |
