Hello Robert! Thanks for coming out to permies and sharing your book with us.
I was wondering if you know of a visual guide where we can see what the roots of different plants look like? Sort of like a field guide that shows what a plant looks like, but this would show what the root structure of a particular plant looks like. I think this would be helpful for folks to have access to.
Nope Simon no field guide. The illustrations are scattered all over the world, a lot in obscure scientific papers. My book has about 25 (can't remember for sure.) My new book, in 2 years, will have over 60 illustrations.