If you can ID the tree it is growing on that will be the key if it's ediable. It is a chicken of the woods but they should not be eaten if they grow on fir/pine trees. If it's growing on a hardwood your good. As latt said getting on the mature side but if you trim the outside leading edge off each leaflet it will be tender. If you can not ID the wood it's growing on I would not eat it.