Compared with symptomless plants (Fig. 1), plants of T. grandiflorum and T. erectum with symptoms of virescence typical of phytoplasma infection (Figs. 2-3) were observed growing as weeds on a private property in the Sparta area of London, Ontario in May 2016.
”- Arocha-Rosete Y, Morales-Lizcano NP, Hasan A, Yoshioka K, Moeder W, Michelutti R, Satta E, Bertaccini A, Scott J: (2016) First report of the identification of a 'Candidatus Phytoplasma pruni'-related strain in Trillium species in Canada©