Elvin & A.C.Sanders (Elmer) 2009 - Elvin MA, Sanders AC (2009) Nomenclatural Changes for Monardella (Lamiaceae) in California. Novon: A Journal for Botanical Nomenclature 19(3): 315-343. doi: 10.3417/2008044.
There is no corrections for Monardella undulata subsp. crispa yet.