The vascular plant flora of the anthills at Old Hall Marshes Results In total 41 species of vascular plants were recorded over the 140 anthills. Table 2 lists the species recorded in descending order of frequence' by number of anthill as well as giving the maximum Doinin rating that the species was recorded at for any individual anthill. Table 2. Species recorded 150 Essex Naturalist (New Series) 20 (2003)