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Ohara, M.; Higashi, S. (1987). "Interference by ground beetles with the dispersal by ants of seeds of Trillium species (Liliaceae)". The Journal of Ecology. 75 (4): 1091–98. Bibcode:1987JEcol..75.1091O. doi:10.2307/2260316. JSTOR2260316.
Zomlefer, Wendy B.; Williams, Norris H.; Whitten, W. Mark; Judd, Walter S. (2001). "Generic Circumscription and Relationships in the Tribe Melanthieae (Liliales, Melanthiaceae), with Emphasis on Zigadenus: Evidence from ITS and trnL-F Sequence Data". American Journal of Botany. 88 (9): 1657–1669. doi:10.2307/3558411. JSTOR3558411. PMID21669700.
Ohara, M.; Higashi, S. (1987). "Interference by ground beetles with the dispersal by ants of seeds of Trillium species (Liliaceae)". The Journal of Ecology. 75 (4): 1091–98. Bibcode:1987JEcol..75.1091O. doi:10.2307/2260316. JSTOR2260316.
Zomlefer, Wendy B.; Williams, Norris H.; Whitten, W. Mark; Judd, Walter S. (2001). "Generic Circumscription and Relationships in the Tribe Melanthieae (Liliales, Melanthiaceae), with Emphasis on Zigadenus: Evidence from ITS and trnL-F Sequence Data". American Journal of Botany. 88 (9): 1657–1669. doi:10.2307/3558411. JSTOR3558411. PMID21669700.
Davis, R.E.; Zhao, Y.; Dally, E.L.; Lee, I.M.; Jomantiene, R.; Douglas, S.M. (2013). "'Candidatus Phytoplasma pruni', a novel taxon associated with X-disease of stone fruits, Prunus spp.: multilocus characterization based on 16S rRNA, secY, and ribosomal protein genes". Int J Syst Evol Microbiol. 63 (Pt 2): 766–776. doi:10.1099/ijs.0.041202-0. PMID22798643.
ny.gov
dec.ny.gov
Nuffer, B. (April 2009). "Red Trillium". New York State Conservationist. New York State Department of Environmental Conservation. Archived from the original on 2011-05-10. Retrieved 2011-05-23.
ontario.ca
"Drooping trillium". Government of Ontario. 2014-07-17. Retrieved 2018-09-22.
Nuffer, B. (April 2009). "Red Trillium". New York State Conservationist. New York State Department of Environmental Conservation. Archived from the original on 2011-05-10. Retrieved 2011-05-23.