This one certainly isn't - Horsetail (Equisetum arvense). It's an interesting plant which has been around since prehistoric times and will likely be around on Plot 3 (our new one) forever! It grows through spores from cone-like tips, earlier in the season, and through its creeping roots (rhizomes) now.
You can see that the blue-black stem looks dead but left in the ground a shoot will soon appear ...
...followed by green growth. The resultant fairy forests really are very pretty, but not in the
middle of our vegetable plot. The weed has ~2m deep roots and pulls
nutrients from deep down in the earth, so doesn't actually cause a whole lot of problems to other
plant growth
(hmmm...watch this space).
The 'leaves' break into sections. These leaves are silica-rich and can
be used for strenghthening your nails and hair and stopping bleeding.
All this information may be tested at some point...though probably not
through ingestion (at least not by me!). More likely It's used in Japan
for polishing wood and metal - I did use it once to polish stainless
steel - but I think the vinegar and bicarb were doing most of the work!
We got about 2 bags of weed and roots out of that area and then dug a couple of barrows of manure in. That should encourage the worms to do their bit and then we're going to plant some broad beans on that part of the plot.
We found a lot of these tubers - they look rather like oca. I think they belong to a weed, but not sure what sort. It looks like forget-me-not but I don't remember the roots looking like that.