Here's what rhymes with cynanchum.
Words that almost rhyme with cynanchum
random phantom tandem tantum bantam canton abandon memorandum dampen plantain nonrandom zooplankton phytoplankton handsome maxim madam ransom madame magnum hansom amalgam chasm datum fathom tantrum sachem transom talcum pablum platinum spasm plasm macadam gladsome sphagnum stratum sanctum phantasm enthusiasm neoplasm iconoclasm tarmacadam cytoplasm substratum protoplasm