blue-eyed grass

from WordNet (r) 3.0 (2006)

blue-eyed grass
    n 1: plant with grasslike foliage and delicate blue flowers

from The Collaborative International Dictionary of English v.0.48

Blue-eyed grass \Blue-eyed grass\(Bot.)
   a grasslike plant ({Sisyrinchium anceps}), with small flowers
   of a delicate blue color.
   [1913 Webster]