EscondidoCal said: Excellent banner & pretty blooms!
It looks tropical, but is more alpine. I thought it might be European,
but it's North American.
See this very interesting Wiki article.
about this very interesting plant.
It even has a mountain range named after it.
A (rare?) beauty, but relatively inexpensive.
https://plants4home.com/produc...
https://www.findsimilar.com/se...
Best article on how to grow.
Thanks Stefan for sharing this very interesting & rewarding plant.