Catkins on an Oak tree. This tree is extremely variable in size and shape. A mature tree can vary in height from 20m to 45m. Some have ragged crowns. The grey bark is finely cracked and ridged. It has short stalked but deeply lobed leaves, with two backward pointing lobes at the base. In May, the male catkins develop on short clusters as the leaves unfold. The female catkins are shorter and bear minute flowers. The fruits (acorns) are in small clusters on long stalks. Oak can form extensive woods on heavy land. Picture taken 5th May 2006 at Old Warden, Bedfordshire.
Added:
7th May 2006 by Diane Earl
Subjects:
Biology, Science
Key Stages:
Key Stage 1, Key Stage 2, Key Stage 3, Key Stage 4, Key Stage 4+
Keywords:
plant tree catkin wildlife
Related Links:
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English Oak (Quercus robur)
