Food ID help

[Katherine]

Anyone know what kind of weed this guy is grazing? Have it cropping up in random spots all over the enclosure so it would be great to know what it was...

 

[Tom]

I've seen it before. Don't know the name.

 

[Moozillion]

Same here- seen it but don't know what it is. Sorry.

 

[wellington]

Possibly this
http://www.thetortoisetable.org.uk/site/plants_19.asp?catID=265
Or
http://www.thetortoisetable.org.uk/site/plants_19.asp?catID=696

I think it's in the daisy family like the two above links, which is to be fed in moderation.