Belle Fleur Jaune is known as Yellow Bellflower and is widely available under that name. I assume you mean Belle Fille de Salins, there is no Belle Fleur de Salins that I know of. There is an apple named "Belle Fille" in the Geneva repository and I believe that may be Belle Fille de Salins; I have it growing in my yard and it tastes something like Mcintosh. I don't think Belle Fleur d'Argonne is anywhere in the US. I also have Belle Fleur Rouge which is an interesting apple with red leaves; the fruit is very large with very white flesh and again the taste of McIntosh (I think McIntosh comes from one of these old Belle Fleur apples, I never saw anyone mention that but the taste similarity is obvious.)

Scott

If you visit a Farmer's Market in the city of Bellflower, CA you will find freshly grown Belle Fleur apples! I don't know which of the three varieties, however the city's takes it's name from the Belle Fleur apple that was originally commercially grown in local orchards. Now, the trees still exist in resident's yards.