The Collaborative International Dictionary of English v.0.48:

Luteic \Lu*te"ic\, a. (Chem.)
   (a) Pertaining to, or derived from, weld (Reseda luteola).
   (b) Pertaining to, or designating, an acid resembling
       luteolin, but obtained from the flowers of Euphorbia
       cyparissias.
       [1913 Webster]