From The Collaborative International Dictionary of English v.0.48:
Bladed \Blad"ed\ (bl[=a]d"[e^]d), a. 1. Having a blade or blades; as, a two-bladed knife. [1913 Webster]
Decking with liquid pearl the bladed grass. --Shak. [1913 Webster]
2. Divested of blades; as, bladed corn. [1913 Webster]
3. (Min.) Composed of long and narrow plates, shaped like the blade of a knife. [1913 Webster]