This is the page featuring a single species. Photographs are presented per individual to make it possible to asses how much variation is possible between individuals within the species.
All photographs of Zwarte_spar__Picae_mariana__Black_spruce
For determination details go to the main-key and the all species page. Recognizing trees of this species is not hard
The photographs shown might be wrong. Not Picea mariana, probably a hybrid of Picea glauca with P. sitchensis, says M Frankis