I would say it is fairly famous.
I cannot be sure what painting you mean. One famous "poppy painting" is Field of Poppies by Claude Monet, painted in 1873.
They are very colorful.
"Field with Poppies" is Vincent Van Gogh's most famous poppy field painting. It was painted in Auvers-sur-Oise in France in June of 1890. The painting is now located at Gemeentemuseum Den Haag.
It is an impressionist painting.
Poppies are a symbol of WW I because there is a famous cemetery for soldiers who died in the war, called Flanders Field, in which poppies grow. There is also a famous poem about this.
Poppies are famous for the 1st worls war
It is an oil painting on canvas.
Poppies are a wild flower, we wear them because in the war, there were poppies on the battleground.
1873
Sunflowers, poppies, asters, Chrysantemums, Salvia...
It is one of his many Impressionism paintings.
You'll have to buy most of them in Redd's tent. But two of them (Famous & Fine) can only be bought and donated to the museum, you'll have to buy in at Tom Nook, as a "Spotlight Product". Here's a list of them all: Amazing Painting Calm Painting Common Painting Famous Painting Fine Painting Flowery Painting Lovely Painting Moving Painting Opulent Painting Perfect Painting Quaint Painting Rare Painting Scary Painting Solemn Painting Strange Painting Warm Painting Worthy Painting !!!