Two different parts can be distinguished in the structure of the tussock.
Klara Tomaszewska 2014, 'Variability and stratigraphy of the tussocks of Carex Apropinquata Schum', Acta Societatis Botanicorum Poloniaehttps://pbsociety.org.pl/journals/index.php/asbp/article/view/1151. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Irrespective, higher numbers were recovered from the tussock site plants than from those from the pasture site.
Barbara Ingeborg Patricia Barratt, Barbara Ingeborg Patricia Barratt, Diane M. Barton,Diane M. Barton, Bruce Philip, Bruce Philip, Colin M. Ferguson, Colin M. Ferguson,Stephen L. Goldson 2016, 'Is the invasive species Listronotus bonariensis (Kuschel) (Coleoptera: Curculionidae)(Argentine stem weevil) a threat to New Zealand natural grassland ecosystems?', Frontiers in Plant Sciencehttp://journal.frontiersin.org/Journal/10.3389/fpls.2016.01091/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)