Family Name: Pinaceae
The Pine Family
Species Name: Pinus
Common Name: Yellow Pine,
Ponderosa Pine, Bull Pine
Foreground tree is an immature Ponderosa Pine, about 6 years old. The background trees are mature Ponderosa pines
lifecycle of this group of plants is not commonly known. It takes 16
- 17 months for the seeds to develop from the time of pollination to
maturity. The sexual parts of these plants are distinctly separate,
generally immerging in spring from the new buds. Some of these buds
will have pollen cones while other buds will have the female seed
cones. With an evolutionary timing the pollen cones burst when the seed
cones are receptive. Wind carries the pollen from the pollen cone to
the seed cone. After pollination the seed cone only partly develops in
that season, while the pollen cones dry and are shed. The seed cone
winters over going to maturity the following fall.
cones immerging from the bud.
Seed cones near time of being
receptive to pollen.
Seed cones, second season