Query: Trees of Saskatchewan or Subarctic America
Domain: plants
Relevant documents:
Populus balsamifera
Populus trichocarpa
Taxus brevifolia
Betula papyrifera
Tsuga mertensiana
Picea sitchensis
Populus deltoides
Abies lasiocarpa
Betula neoalaskana
Thuja plicata
Tsuga heterophylla
Tilia americana
Larix laricina
Jack pine
Picea mariana
Callitropsis nootkatensis
Picea glauca