Huge thanks for your work on the new trees, and YES, I surely would love to see more species from you. I was a Forest Officer in the B.C. Forest Service, and in that area the Larch or Tamarack (Larix laricina) didn't grow to tall, around 15m, the same was true when I worked in Ontario but they could get a little taller there. It's very close to the European Larch (Larix decidua).
For those interested in other Canadian species:
Tree Book for British Columbia - http://www.for.gov.bc.ca/hfd/library/documents/treebook/index.htm
Ontario Trees & Shrubs - http://ontariotrees.com/
Again, thanks for your mods.