Gene cloning and sequence analysis of phenylalanine ammonia lyase in Sparganium stoloniferum Chemical constituents of arganium stoloniferum(I) Studies on Antiplatelet Aggregation and Antithrombosis Action of Total Flavonoidsof Common Burreed (Sparganium stoloniferum) Optimization of Processing Technique of Sparganium stoloniferum by Orthogonal Experimental Design Studies on the Chemical Constituents of Sparganium stoloniferum Buch.-Ham.