How many "sunflowers" oil paintings do Van Gogh painted ？

google it.

Vincent van Gogh made 11 sunflowers in his life, and 10 were scattered all over his death, only one of which was currently exhibited at the Van Gogh Museum. (This data has yet to be questioned, because there are constantly real, and there is no lack of fakes to prove) is the embodiment of Van Gogh's "Sunflower" by the brilliant yellow color combination. Van Gogh thought yellow represents the color of the sun, and the sun symbolizes love, so it has special meaning. He expressed himself as a variety of flowers in the sunflower and sometimes even compared himself to a sunflower. In his letter to his brother Theo, Van Gogh repeatedly talked about the series of Sunflowers, which illustrated the two compositions of 12 and 14 sunflowers. He $number the 12 disciples of Christ, he also set the southern studio (Friends of the family) members of 12 people, plus I and brother Theo two, altogether 14 people. For Gogh, the Sunflower flower is the best subject of his thought. Summer is short, sunflower's flowering is not long, Van Gogh also such as to sunflower-like end his short life, called him a sunflower painter, should be appropriate.

http://www.art-king.com/image/catalog/Framed%20picture/sunflower.jpg
This one is my favorite sunflower of Van Gogh, which is full of temperament and vitality. Are there any other similar paintings recommended.

Otto Waacker, a famous art forger who specialized in van Gogh paintings did a number of Sunflowers and they hvent decided on which is which as of yet. They know a few as fakes because of forensics were led by chain of ownership FROM Otto, who ws also a well known Dutch Gallery Owner.

There was a guy recently, who tried to fake a bunch of van Gogh irises nd sunfkowers but he got nailed because, even though he only used old canvases in which he scraped off the paintings and the grounds and took it down to the gesso, he mixed up his colors with modern titanium white and organic greens and blues.

Guys like Han van Meegeren, who copied only erly Vermeer paintings, used to make his own blue pigment by grinding up and mulling his wifes jewelry