Seeds of an unknown plant

I have managed to catch up today on the Emma Davies lessons A Year with my Camera on facebook today. I am doing an album on seeds and had several sitting in the garage waiting to be taken. A basket of acorns, a queen annes lace shedding everywhere, a cone from a tree, a hydrangea like head and this. A friend brought it round as I expressed an interest in it weeks ago. The leaves looked like a castor oil plant  but I haven't checked that yet.
I am all caught up on photos. Cleared out some more drawers. Mostly paperwork on courses I have taken over the years or genealogy that is recorded some other way and I don't need the original.
But I have emails waiting for replies. Always something.