Need advice on bark grafting

[mamuang]

Here to answer you where cambium is.

Just exactly what color is the cambium anyway?

I know this seems like a simple question, but I don’t think it is. One poster touched on this very briefly in another thread, but I thought I’d start a thread to ask this question more formally. I’ve always read/heard the cambium is the green tissue under the bark. The problem I have with this is that when T-budding the rootstock, I’ve not noticed any green tissue touching the newly placed bud. In other words, when opening the “T” I see blond “naked” wood on the little trunk, and blond color…