nominative plural of mūla?

[echalon]

Could someone give me a confirmation of whether the standard nominative plural of "mūla" is "mūlāni"? I'm specifically looking at the usage of "akusalamūlāni", and since I believe "mūla" is a neuter noun I think the nominative plural should be "mūlāni", though I think I may also have seen just "mūlā" floating around in some places as well. Thanks!