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Part XIV : Seasonal Influences on Plant Populations Index

How the Plant populations in the Biosphere Change from One Season to the Next
How Plants Survive Winter
In the Spring : Germination
Laboratory work relating to this chapter

Topic Chapters Index

 

Winter scene © David Hoult

 

More information on how plants survive the Winter from other sections of the ODWS

These hyperlinks will open a new tab or window.

 

Pine needles © Paul Billiet

The needles of a pine tree.
Where are pine trees found?
Give the climate, biome, geographic region.

Observe a pine needle and describe the characteristics that will allow it to survive over winter.

Deciduous and evergreen trees © Paul Billiet

SEASONAL INFLUENCES ON PLANT POPULATIONS

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Other Ways of Surviving Winter

Rhizomes

Some plants, such as the fern, survive the winter as an underground stem called a rhizome.

Diagram of a rhizome © Shirley Burchill

1 = The fern's leaves above ground die during the winter months
2 = New shoots will be able to grow in the spring using the food energy stored in the rhizome

 

Survival Above Ground for an Evergreen

Some trees lose their leaves in the winter. Pine trees do not. The pine needles survive throughout the winter.

Trees which lose their leaves in winter are called deciduous trees. Those which keep their leaves or needles all year are called evergreen trees. The photograph (bottom left) shows examples of both. The evergreens are in the background and the deciduous trees in the foreground have lost their leaves for winter.

 

Survival Above Ground for a Deciduous Tree

 

Chestnut tree buds in winter © Paul Billiet Detail of a chestnut bud © Paul Billiet

 

In autumn, the chestnut tree drops its leaves and the tree becomes dormant for the winter. Already the buds can be seen from which the next year's leaves will grow. This is how the chestnut tree prepares to survive winter.

 

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