• xrataegus oxyacantha,
• vrataegus oxyacantha,
• frataegus oxyacantha,
• drataegus oxyacantha,
• ceataegus oxyacantha,
• cdataegus oxyacantha,
• cfataegus oxyacantha,
• ctataegus oxyacantha,
• c5ataegus oxyacantha,
• c4ataegus oxyacantha,
• crztaegus oxyacantha,
• crstaegus oxyacantha,
• crwtaegus oxyacantha,
• crqtaegus oxyacantha,
• craraegus oxyacantha,
• crafaegus oxyacantha,
• cragaegus oxyacantha,
• crayaegus oxyacantha,
• cra6aegus oxyacantha,
• cra5aegus oxyacantha

The adjective form of the word "crataegus oxyacantha" is "crataegus oxyacantha". The adjective form maintains the same name as the genus and species, as is commonly done in biological nomenclature when referring to specific organisms.

The plural form of "Crataegus Oxyacantha" is "Crataegus Oxyacanthae".

The singular form of the word "Crataegus Oxyacantha" is "Crataegus Oxyacantha". It is already in its singular form. "Crataegus Oxyacantha" is the scientific name for a species of hawthorn tree.