I think this one deserves it's own thread although unfortunately I don't have much information about it apart from it does differ to the standard KNO. Quote from Pat at Hippopottering "Yes Yamato koto no ito is different. When put in full sun it is orange in summer. It's a really nice tree. The dwarf version of koto no ito is koto ito komachi and both of the above are quite rare compared to koto no ito." It does look slightly different to my KNO at the moment, leaves seem less serrated and some have a red tip, anyway I think it's a lovely shape and I've placed it in full sun to see what happens. Hopefully I'll be able to post a few photos of a more colourful specimen later, just waiting to see if I can borrow some.