Wendy Guiry (October 16, 2008). "Carex spicata Huds". The Irish Species Register. Archived from the original on October 9, 2011. Retrieved July 7, 2011.
Wendy Guiry (October 16, 2008). "Carex spicata Huds". The Irish Species Register. Archived from the original on October 9, 2011. Retrieved July 7, 2011.