5,141 Nurul Nadia Binti Ya'akob 2019-05-14 https://pfaf.org/user/Plant.aspx?LatinName=Hemerocallis+citrina Plants For A Future. (n.d.). Hemerocallis citrina. Baroni.. Retrieved from https://pfaf.org/user/Plant.aspx?LatinName=Hemerocallis+citrina Amber Global https://core.ac.uk/download/pdf/10200447.pdf PDF-Book-University of Illinois Agricultural Extension Station Circular - Daylilies for Every Garden. https://hgic.clemson.edu/factsheet/daylily/ Website-Factsheet Clemson University - Daylily.