|Wild Angelica, Angelica sylvestris. Keston Common, 15 September 2012.|
|Water Mint, Mentha aquatica. Keston Common, 15 September 2012.|
|Sapling of Holm Oak, Quercus ilex. Keston Common, 15 September 2012.|
"Holm" means Holly, so Holm Oak presumably gave its name to the UK soap Hollyoaks, though you will have some difficulty finding any botanical storylines there. It's only the young saplings that have prickly leaves, and unlike Holly leaves, they have whitish down on their undersides.
I read recently that this is the only oak to have acorns which are not only edible, but actually palatable, so if I ever find some on a tree and within reach I will try a nibble.