Hi, A bonsai friend needs to get rid of some of his trees for lack of space: we tend to buy, sow, or collect almost anything "just to try", but it can become too much. So he gave me an Acer triflorum, not so good for bonsai, but it will fit in nicely in my jungle of potted maples. And this one too, but he couldn't tell me what it was. It's not grafted, the leaves are rather small (5-6 cm), the new ones deep red, older ones dark green - the size of the leaves might not be really relevant since it has been in a small pot for at least two years I think and was cut back. The bark is grey with some very light green, almost yellow: maybe Acer cappadocicum 'Rubrum'?...