What we don't see on our streets

UBC Garden is just beautiful in June with roses, stewartia, styrax,mock oranges and so on.
My attention as always was caught with a few rare things.
Chionanthus retusus from Asia (China,Korea,Japan) looks so different compare to our aerial Fringetree from Eastern North America.


Here is Enkianthus campanulatus var. sikokianus with drooping racemes of dark red bells


Linum campanulatum, flax but with yellow flowers.


Calochortus superbus is really superbus! So many lily flowers with orchid or iris spots on the inner side of petals and so fragile pedicel!

 

Chionanathus retusus flowers more profusely in hot climates.

 

I believe that, but even petals of Chionanathus retusus look shorter than Chionanthus virginicus has. Would petals be longer in hot climate?
here is picture of Chionanthus virginicus