No such thing as a national flower for France. And if there was one it wouldn’t be the iris anyway. And many other countries don’t have that concept either.

This is some bullshit made up by an American florist trying to sell flowers to people who identify as 1/67th Slovenian.

If there was one, in Portugal it would be carnation

That’s not how the Polish say “flower”. It should be “kwiat”, we don’t have a word “blomst”. Pretty sure we don’t even have a notional flower either.