Some Hops (Humulus lupulus) today,

Along with Pennsylvania Pelitory (Parietaria pensylvatica).

I was back at the mysterious “French nut tree”, in the park also today. I’d thought it may be a member of the  Pistachio family but my tree identification book tells me it’s not. I’m still clueless as to it’s real identity and whether it’s edible our not. Any ideas?

The leaves are heart shaped, wooly on both sides (particularly beneath but a little on top) smooth edged and my full hand span across. The fruit has a five pointed calyx and it tapers to a sharp point at the end of the fruit. The one I picked today is a little sticky on the outside.