Abies sibiricasubsp. siberica Ledeb. (1833), is the typical subspecies of Siberian fir. Please follow this link for full description and more pictures.
Abies siberica — Twig with needles, flat linear needles weakly emarginate at apex, stomatal pores visible, courtesy of FloraGREIF - Virtual Flora of Mongolia.
Photo by University of Greifswald, Institute of Botany and Landscape Ecology, Institute of Geography and Geology, Computer Centre, 2010-