As classified in WFO snapshot
December 2023
Warning: older classification
variety
Crataegus monogyna var. pteridifolia
This variety name was first published in Verh. Vereins Beförd. Gartenbaues Königl. Preuss. Staaten 22: 278 (1853)
This variety name has been reclassified since this snapshot. Its current preferred usage is a synonym .