Gas-liquid chromatography of lipoidal matter of the seeds of C. sinaica indicated that the seeds consist mainly of a mixture of a series of n-alkanes (75.75%).
Crataegus | Crataegus monogyna | Crataegus laevigata | ''Crataegus'' spp. | Crataegus orientalis | Crataegus mexicana | Crataegus crus-galli | ''Crataegus'' |
Under the International Code of Botanical Nomenclature the name C. × macrocarpa covers all intermediate forms between the two parent species, including backcrosses.
Under the International Code of Botanical Nomenclature the name C. × media covers all intermediate forms between the two parent species, including backcrosses.