Helianthus L. is a New World genus of around 100 species, grown for flower, seed, and tubers.
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Image showing the flower in closeup, illustrating ray and disc florets, and the developing seeds.
Research project by Sara Mitchell on the common sunflower including its classification, habitat, reproduction, adaptations, nutrition and interactions with other species.
Taxonomy, description and photograph of the beach sunflower growing in Florida.
Photograph, description, distribution, ecology and economic significance.
A short description of the Jerusalem artichoke, including cultivation and medicinal uses.
Last update:May 14, 2015 at 13:32:30 UTC