firs

FIR

Fir are a genus of 48-55 species of evergreen coniferous trees in the family Pinaceae . There are found through much of North and Central America ,Europe Asia and North Africa , ocurring in mountains over most of the range . Firs are most closely related to te genus Cedrus .Douglas firs are not true firs ,begin of the genus Pseudotgia  .There are larges trees ,reaching heights of 10-80m (33,262ft) tall and trunk diameters of 0.5 -4m(1ft8 in -13 ft 1 in)when nature .Firs can be distinguished from others members of th pine family by the unique attachment of their needle-like leaves and by their different cones .

contents

 

1. leaves 

2. cones

3. use and ecology

 

leaves

Firs can be distinguised from other members of the pine family by the unique attachment of their needle-like leaves to the twig by a based that ressembles a small suction cup . The leaves are significantly flattened ,sometimes even lookig like they are pressed ,as in Asibrica 

cones

Firs differ from other conifers in having erect , cylindrical cones 5-25cm (2.0-9.8in)long at disintegrate at maturity to release the winged seeds . In contrats to spruces , even large firs cones do not hang , but are raised like candles.