Woodland Watch – Week 13 – 12/06/2013

Welcome to another week and another walk in the woods. I have been amazed watching this woodland week by week, seeing all the changes and this week was just as exciting. So, here we go!

One of the standard trees in this woodland that we haven’t really looked at yet is the oak. There are several oak trees around the site, both young and mature specimens. This year, with the cold start to spring it took the oak trees a while to come into leaf. As you can see now, the oaks are properly in leaf and their vibrant green leaves provide a beautiful upper canopy to a few areas of the wood.

Looking up through the oak canopy

Looking up through the oak canopy

Of all our native trees, the oak is probably one of the most commonly recognised by people. Widespread in fields, hedgerows and woodlands it is arguably one of the classic English trees. There are over 400 species of oak worldwide including trees, shrubs, deciduous and evergreen varieties and they can live up to 700 years old, outliving all other trees in the UK except the yew.

In this woodland we have the native English Oak. Male catkins appear on the tree with the leaves in April and become long, pollen-filled pendulous by May. Then the female catkins open as upright flowers which await the touch of fertilising pollen from the males. They hold the seed vessels which will become acorns, the fruit of the oak tree.

I will look out for these in the coming weeks. For now, here’s another beautiful picture of the leaves of a young oak tree, bright and vibrant with new life.

Bright young oak leaves

Bright young oak leaves

We already noted last week the dramatic change in the colour of the woodland floor. Only a couple of weeks ago it was covered in the vivid blue of the bluebell flowers. Last week we saw the change to green as the flowers disappeared and the leaves started to wilt.

Bluebells reproduce through propagation by seed using sexual reproduction. They are usually pollinated by insects and after fertilisation occurs, the seeds are produced and dispersed. In the woodland, now that the flowers have disappeared you can clearly see all of the seed pods still standing on the upright stalks. Right now the seeds are still green, but they will turn darker as they mature before they are ready to disperse.

Bluebell seed pods

Bluebell seed pods

Going back a few weeks, before the hazel leaves burst into life we looked at the male catkins and female flowers and how the hazel reproduces. Now that this has happenned and the female flowers have been fertilised, the male catkin has fulfilled its purposes and drops off, leaving the female to produce the nuts that we will see in autumn. Walking around the wood, you can see many of the used, male catkins on the woodland floor.

Male catkins drop off once they have fertilised the female flowers, leaving them to develop into nuts ready for autumn.

Male catkins drop off once they have fertilised the female flowers, leaving them to develop into nuts ready for autumn.

And sticking with the theme of reproduction, the hawthorn has also just come into flower. Later than in most years but making a beautiful sight, especially around the boundaries of the wood where this photo was taken.

Hawthorn flowers coming into bloom on the edge of the wood

Hawthorn flowers coming into bloom on the edge of the wood

These blossoms contain both male and female reproductive parts and are fertilised by passing insects. By summer the seeds will grow into small green berries which will turn dark red by autumn to attract birds who will eat the berries and propagate the seeds. We will watch the hawthorns in the woodland as they move through this cycle.

And that’s it for another weekend of woodland watch. Join us next week for another walk in the woods!

In the meantime don’t forget to check out our website http://www.tree-creeper.com and send us any of your own woodland watch pictures from your own walks to office@tree-creeper.com or send them through our facebook page!