Fig. 9. Mass of Se accumulated in the 0- to 20-cm sediment, detrital layer, and fallen litter in September 2000. BUL, sturdy bulrush; BAL, baltic rush; CORD, smooth cordgrass; RAB, rabbitfoot grass; SALT, saltgrass; CAT, cattail; B–W–B, bulrush–widgeon grass–bulrush; T–W–C, tule–widgeon grass–cattail.