Distribution map of Crataegus monogyna (common hawthorn).
     Native continuous range
✖ Native isolated population
Caudullo, G., Welk, E., San-Miguel-Ayanz, J., 2017. Chorological maps for the main European woody species. Data in Brief 12, 662-666. DOI: 10.1016/j.dib.2017.05.007
Data: https://doi.org/10.6084/m9.figshare.24024954
References:

Christensen, K. I., 1992. Revision of Crataegus sect. Crataegus and nothosect. Crataeguineae (Rosaceae-Maloideae) in the Old World. Systematic Botany Monographs: 1-199.
Fichtner, A., Wissemann, V. ,2021. Biological flora of the British isles: Crataegus monogyna. Journal of Ecology, 109(1): 541-571.
Kurtto, A., Sennikov, A. N. &amp; Lampinen, R. (eds.), 2013. Atlas Florae Europaeae - Distribution of Vascular Plants in Europe vol. 16 Rosaceae (Cydonia to Prunus, excl. Sorbus). The Committee for Mapping the Flora of Europe &amp; Societas Biologica Fennica Vanamo, Helsinki. ISBN 9789519108179
Meusel, H., Jäger, E. J., Weinert, E. (Eds.), 1965. Vergleichende Chorologie der Zentraleuropäischen Flora, Band I. Gustav Fischer Verlag, Jena.
Norwegian Biodiversity Information Centre. Artsdatabanken.no. Accessed in August 2023
SLU Swedish Species Information Centre. Artdatabanken. Accessed in August 2023
eBiodiversity. Atlas of the Estonian Flora. Accessed in August 2023
Giovanni Caudullo