Some fallen leaves in a Hornbeam wood.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3l5YlZUoeTqd_J7A5rqAjmQIGNNlc6jihzNYa5cPhYKsyUv_GPd2n_oextYx_edMpttekXkUHOE6IirhkXTC1dQHs3M3minm8eTLmkTAzoKQJZEPaS_YBGyW-wpC_3Q1iKceQB2PfDpM/s640/carpinus+betules+feuilles+rouge-199845za-bl.jpg)
But normally leaves of Hornbeams (Carpinus betulus) turn yellow in autumn, isn't it? It seems this is not always true.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLFirA4BWKBOXrngTiLWVvwh7ah9ZEqIkzf838EmYV_WWyM2N53Tr6LUSEukQ_Lw0b9OyH-sLyQNLK5W7goJCl9j1IE7vfdsV3Xxea42oH-dHOobhozJEoRE9htSOuS7Ja4iKKZ5fPlGk/s640/carpinus+betulus+cimes+rouge-199834za-bl.jpg)
Confirmed when we look upwards. Two Hornbeam trees wit reddish leaves. Exceptions to the rule exist.