I can't see where the stems attach to the leaves, but if there is a
little sheath there, it is in the buckwheat family (see the picture of
an "ocrea" halfway down http://en.wikipedia.org/wiki/Polygonaceae ).
Most of those are generally considered weeds (although you need to
make the final decision for yourself).
But at least in my garden (Washington, DC) there are other volunteer
plants which look like that, including Pokeweed and probably others.
If you are in the UK, as you email address would seem to imply, my
experience here is perhaps even less likely to help you.
Until it flowers, it might be pretty hard to identify.
I'm going to be in DC on Sept. 15-20. Can I pick your brain some?
It's my first trip. (I'm going to meet with Senators about the
Farm Bill. It's a National Farmers Union trip.)
Anyway, I want to know about Farmers Markets, the US Botanical Garden
and anything else that I can't miss. (I'm arriving a day ahead of time
and leaving a day later than everyone else in my organization, so I can
be a tourista. It's only fair, since my state is *full* of tourists
Jan in Alaska
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.