Chenopodium album good/bad for buns?

Hi, I planted some herbs for my buns and another plant came up amongst them. This other plant is growing twice as fast as the herbs! Can anyone tell me if I can feed it to my buns (seems a shame to waste it). The following two links show what it is:

http://www.commanster.eu/commanster/Plants/Flowers/SpFlowers/Chenopodium.album.html
http://en.wikipedia.org/wiki/Chenopodium_album

Not safe. I have found it on a couple of 'bad' lists. It seems it has the potential to accumulate nitrates (found in fertilisers) to toxic levels
http://cal.vet.upenn.edu/projects/poison/plants/pplambs.htm

Yikes. I'm glad I asked then. Thanks for the info. :wave:

I would also add to that that like spinach it also has a very high oxilic acid value which is not great either & is why spinach should also only be fed in moderation.