Difference between revisions of "Helianthus annuus"

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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.
 
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.
  
Read [[Gray & Trumbull, 1883. Review of DeCandolle's Origin of Cultivated Plants. Part 1#Helianthus annuus|Gray & Trumbull (1883)]] and [[Helianthus (Sturtevant, 1919)|Sturtevant (1919)]]'s articles.
+
Read [[Gray & Trumbull, 1883. Review of DeCandolle's Origin of Cultivated Plants. Part 1#Helianthus annuus|Gray & Trumbull (1883)]] and [[Helianthus (Sturtevant, 1919)|Sturtevant (1919)]] articles.
  
 
== Uses ==
 
== Uses ==

Revision as of 12:08, 20 November 2012

Helianthus annuus L.

alt=Description of SunflowerSunset.jpg picture.
Order Asterales
Family Compositae
Genus Helianthus

2n = 34

Origin : United States and Mexico

wild and cultivated

English {{{english}}}
French {{{french}}}



Popular names

  • English: sunflower
  • French: tournesol

see more European names

Biology

Classification

Cultivars

History

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.

Read Gray & Trumbull (1883) and Sturtevant (1919) articles.

Uses

References

Links