pine
By seed produced in the cones.
is a fir healthy if it quits having cones
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The Douglas fir (Pseudotsuga menziesii) is a conifer tree that produces large, distinctive cones similar to alder cones. It is a coniferous tree but is not deciduous, unlike alder trees. The cones of the Douglas fir are much larger than those of alder trees.
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Fir trees reproduce through a process called seed production. Male fir trees produce pollen, which is carried by the wind to female cones on other trees. The female cones collect the pollen, allowing fertilization to occur. Once fertilized, the cones develop seeds that can be dispersed to grow new fir trees.
Fir, spruce, and pine cones are reproductive structures found on conifer trees. These cones house the tree's seeds and are responsible for reproduction. They come in different shapes and sizes depending on the species.
The Douglas fir tree is Oregon's state tree. It is a tall evergreen timber tree of Northwest North America, having short needles and egg-shaped cones.
coniferous
One of the best and easiest ways to tell the difference between a true spruce and fir tree is to look at the tree's cones. When mature, the cones on a fir tree stand straight up (point towards the sky) while the mature cones on a spruce grow down towards the ground from the bottom side of the branch. The way that I remember which grows up and which grows down is that I remember the "s" in spruce means that the cones "spray" the ground.
Fir trees disperse their seeds through cones that fall from the tree and release seeds when they mature. The cones then open and release the seeds, which are often carried by wind or animals to new locations where they can germinate and grow into new trees.
A fir tree is an example of a coniferous tree that belongs to the genus Abies. Coniferous trees are characterized by their needle-like or scale-like leaves and often bear cones. Fir trees are evergreen, meaning they retain their needles year-round.