Looks to me like the closed foliage of Acacia dealbata or Acacia mearnsii. A bit hard to tell because from those photos I can't see if the leaflets are further subdivided (bipinnate). If not, it's not either of those species. Anyhow, you can see photos of the open foliage of both of them on my website at http://www.cfgphoto.com/photos-acacia-2090.htm .
