Additional
Information: Helianthus L. is a New World genus of around 100 species, grown for flower, seed, and tubers.
Helianthus Sites:
Helianthus tuberosus Helianthus tuberosus: A short description of the Jerusalem artichoke, including cultivation and medicinal uses. (Helianthus) http://www.botanical.com/botanical/mgmh/a/artic065.html
Helianthus annuus Helianthus annuus: Image showing the flower in closeup, illustrating ray and disc florets, and the developing seeds. (Helianthus) http://www.botany.hawaii.edu/faculty/carr/images/hel_ann.jpg