Helianthus annuus
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Revision as of 16:03, 20 November 2012 by Michel Chauvet (Talk | contribs)
Helianthus annuus L.
| Order | Asterales |
|---|---|
| Family | Compositae |
| Genus | Helianthus |
2n = 34
Origin : United States and Mexico
wild and cultivated
| English | {{{english}}} |
|---|---|
| French | {{{french}}} |
Contents
Popular names
- English: sunflower
- French: tournesol
see more European names
Biology
Classification
Cultivars
History
- Historical illustrations
Chrysanthemum perunianum (Dodoens 1568)
Chrysanth. perunianum (Dodoens 1569)
Chrysanthemum peruvianum (Dodoens 1583)
It comes from the same wood engraving. It represents a cultivated type with only one big head. Leaves are drawn as alternate, although they are in fact opposite decussate.
During centuries, sunflower was grown as an ornamental. Targioni-Tozzetti mentions it as an ornamental, and Candolle omits it because he did not deal with ornamentals.
Read Targioni-Tozzetti (1853), Gray & Trumbull (1883) and Sturtevant (1919) articles.
