Laetiporus sulphureus (Bull.) Murr. also known as 'Chicken of the Woods' is fairly common in the early part of the year, mostly on elderly Oak and Beech trees. The example below shows a large growth on a felled Beech in Bretton Nature Reserve. It is usually regarded as edible, but a well-known mycologist once served it to a large number of Journalists and several of them had unpleasant gastric problems as result, indicating that some people may have allergic reactions to the species. It is also possible that it may have different properties according to the tree on which it is growing.