7 Answered Questions for the topic trees


Flora of Ice Age Europe?

I'm trying to get a very in-depth idea of the ecosystem of Pleistocene Europe, somewhere around 40,000 years ago, and I can't seem to find what types of foliage (other than the obvious grasses and... more


Why do birches have a white bark?

Several species of the tree genres *Betula* have a white bark,especially when they are young. This is quite peculiar to trees - at least in central Europe; so I'm wondering if there is a ecological... more

Who first made paper?

How to correctly and accurately identify a few species of trees from their leaves?

I want to identify a tree from one of the 12 species listed based on observing their branch and leaves. Is there quick and neat way to do it? Red Oak, White Oak, Red Maple, Striped Maple, Tulip... more


Why is it hot at the equator?


Why does a lightsource postpone the time it takes for the leaves falling from a birch?

It is autumn and the leaves have already left their trees on all birch and other trees that has leaves, except one. This birch has a spotlight pointed to the tree and it is on 24/7. I have... more

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