Photography by Marie Viljoen. Above: Siberian elm samara in New York City. Like other fruit, nut, and winged seed trees (like maples), elms can have mast years, or a bumper crop, where branches ...

Because it proliferates so quickly -- and the wind blows its seeds far and wide -- a Siberian elm tends to overtake surrounding plant life, stealing their resources and choking out their sunshine.

Crews in Summerland are removing invasive trees from Memorial Park along Victoria Road South. The Siberian elm trees are ...