Crataegus × grignonensis sometimes spelled grignoniensis, is a hybrid hawthorn commonly known as "Grignon hawthorn". The hybrid originated as a seedling...

ariifolia (= C. ariaefolia) Crataegus × dsungarica Crataegus × grignonensis – Grignon hawthorn, an unpublished name Crataegus × lavalleei – Lavallée hawthorn...

botanique de l'Institut National List of botanical gardens in France Crataegus grignonensis AgroParisTech - Grignon campus map Association de l'arbre de fer:...