 Trillium grandiflorum as well as other trilliums are a favored food of white @-@ tailed deer . Indeed , if trilliums are available deer will seek these plants , with a preference for T. grandiflorum , to the exclusion of others . In the course of normal browsing , deer consume larger individuals , leaving shorter ones behind . This information can be used to assess deer density and its effect on understory growth in general . 
