You are fine, they are all Oak (Quercus), and possibly just different forms of English Oak (Quercus robur).Picked up from what I thought was a pile of oak leaves but realised they're not all the same when I got home.
Any idea what they are?
No, they are definitely Oak. Hawthorn (Crataegus spp.) leaves go a much darker brown as they senesce.None to sure if the top leaves are not Hawthorn, with the single lobe at the top of the leaf.
There are a lot more different types of Oak (Quercus) in the USA. The northern European Oak flora is pretty limited, although there is more variety as you get towards the Mediterranean (Q. ilex, Q. coccifera, Q. suber etc).he only other types to distinguish from are red oak which are spiky, live oaks which are more like a traditional looking leaf (oval), and post (iron) oak which are quite distinctive also. There are others too but follow similar patterns.