I had never heard of Caranaga but— Wikipedia has an article about it; it is a large family with many species, native to Asia and eastern Europe. Most species don't even have separate articles about them at Wikipedia, with one exception: Caragana arborescens, or Siberian pea-tree, which is considered an invasive species in some areas. According to this map it is found throughout most of Canada. So it sounds plausible that you have identified it correctly.
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