The Collaborative International Dictionary of English v.0.48:

Blazing \Blaz"ing\, a.
   Burning with a blaze; as, a blazing fire; blazing torches.
   --Sir W. Scott.
   [1913 Webster]

   Blazing star.
   (a) A comet. [Obs.]
   (b) A brilliant center of attraction.
   (c) (Bot.) A name given to several plants; as, to
       Cham[ae]lirium luteum of the Lily family; Liatris
       squarrosa; and Aletris farinosa, called also
       colicroot and star grass.
       [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Colicroot \Col"ic*root`\, n.
   A bitter American herb of the Bloodwort family, with the
   leaves all radical, and the small yellow or white flowers in
   a long spike (Aletris farinosa and Aletris aurea). Called
   sometimes star grass, blackroot, blazing star, and
   unicorn root.
   [1913 Webster]

WordNet (r) 3.0 (2006):

colicroot
    n 1: any of several perennials of the genus Aletris having
         grasslike leaves and bitter roots reputed to cure colic
         [syn: colicroot, colic root, crow corn, star grass,
         unicorn root]