Query: Trees of Saskatchewan, Manitoba or Alberta
Domain: plants
Relevant documents:
Cornus alternifolia
Juniperus scopulorum
Populus balsamifera
Populus trichocarpa
Douglas fir
Taxus brevifolia
Western larch
Celtis occidentalis
Pinus flexilis
Pinus albicaulis
Larix lyallii
Populus deltoides
Pinus resinosa
Western white pine
Populus angustifolia
Abies lasiocarpa
Pseudotsuga menziesii var. menziesii
Tilia americana
Jack pine
Picea glauca