Hello Pijaya this is the root when it is dormant in summer(I knocked it off the bench:duh:).
[attachment 21160 EUPHORBIACHARLESWILSONIANA.jpg]

Yes there are some spiky Dave's on this website!

Arran is this what is sold to gardeners as 'hortag'.

Bugger I just brought two bags of wilkos version for £2.49 each.

Oiled up virgins as well.

I think I will just start at the top and work my way down just in case it does not throw any offsets. When I reach the bottom I could sell it on Ebay as a caudiciform maybe make a shed load of money:baringt:

Hello everybody here is the taproot
[attachment 21122 CEREUSAETHIOPS.jpg]
So I should chop it off a couple of inches above the neck shown in the photograph and dump the rest.

And a shot of the base.
[attachment 21121 CEREUSAETHIOPS.jpg]

Here is a shot of the top.
[attachment 21120 CEREUSAETHIOPS.jpg]

This is an old plant and I wondered if it would do it any good if it was chopped off near the base? If the good sections were rooted would the big taproot grow back.
[attachment 21119 CEREUSAETHIOPS.jpg]