World Register of Marine Species (WoRMS)
Cyperaceae Working Group. (2026). [see How to cite]. Global Cyperaceae Database. Carex spongiosa Ohwi. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1693489 on 2026-08-29
Ohwi, J. (1930). Contributiones ad caricologiam Asiae Orientalis (pars prima). Memoirs of the College of Science, Kyoto Imperial University. Series B. 5(3): 247-292.