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Bulgarian Fir (Abies borisiiregis) is a fir native to the mountains of the Balkan Peninsula, in Bulgaria, northern Greece, Macedonia, Albania and Serbia. It is a large evergreen coniferous treeThis article is about the biological organisms known as trees. For other meanings of the word see tree (disambiguation). oak tree in Denmark A tree can be defined as a large perennial woody plant. Though there is no set definition of size, it is generally growing to 40-50 m (exceptionally 60 m) tall and with a trunk diameter of up to 1.5 m. It occurs at altitudes of 800-1,700 m, on mountains with a rainfall of over 1,000 mm.

The leavesThis article is about the leaf a plant organ. See Leaf (disambiguation) for other meanings. In botany, a leaf is an above-ground plant organ specialized for photosynthesis. For this purpose, a leaf is typically flat and thin, to expose the chloroplast con are needle-like, flattened, 1.8-3.5 cm long and 2 mm wide by 0.5 mm thick, glossy dark green above, and with two blue-white bands of stomata below. The tip of the leaf is variable, usually pointed, but sometimes slightly notched at the tip, particularly on slow-growing shoots on older trees. The conesA cone (in formal botanical usage: strobilus plural strobili) is an organ on plants in the division Pinophyta ( conifers) that contains the reproductive structures. The familiar woody cone is the seed-producing female cone. The male cones, which produces are 10-21 cm long and 4 cm broad, with about 150-200 scales, each scale with an exserted bract and two winged seedThis writeup is about biological seeds; for the Buddhist metaphor, see bija. A seed is the ripened ovule of gymnosperm or angiosperm plants. The importance of the seed relative to more primitive forms of reproduction and dispersal is attested to by the sus; they disintegrate when mature to release the seeds.

It is closely related to (and in many respects intermediate between) Silver FirSilver Fir : Plantae : Pinophyta : Pinopsida : Pinales : Pinaceae Abies alba Binomial name Abies alba Silver Fir or European Silver Fir Abies alba is a fir native to the mountains of Europe, from the Pyrenees north to Normandy, east to the Alps and the Ca to the north in central Europe, Greek FirGreek Fir Abies cephalonica is a fir native to the mountains of Greece, primarily in the Peloponnesos and the island of Kefallinia, intergrading with the closely related Bulgarian Fir further north in the Pindus mountains of northern Greece. It is a mediu to the south in southern Greece, and Nordmann Fir to the east in northern Turkey. Some botanists treat it as a natural hybrid between Silver Fir and Greek Fir, while others treat it as a variety on Silver Fir, as Abies alba var. acutifolia. Another synonym is Abies pardei.

The scientific name honours Tsar Boris III of Bulgaria, during whose reign it was described as a new species in 1925.