Helianthus L. is a New World genus of around 100 species, grown for flower, seed, and tubers.
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- Helianthus annuus Image showing the flower in closeup, illustrating ray and disc florets, and the developing seeds.
- Helianthus tuberosus A short description of the Jerusalem artichoke, including cultivation and medicinal uses.
- Helianthus annuus Research project by Sara Mitchell on the common sunflower including its classification, habitat, reproduction, adaptations, nutrition and interactions with other species.
- Helianthus debilis Taxonomy, description and photograph of the beach sunflower growing in Florida.
- Helianthus lenticularis Photograph, description, distribution, ecology and economic significance.