''Crataegus calpodendron'' is a species of
hawthorn native to much of the eastern
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
and to
Ontario
Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...
, Canada. The common name late hawthorn refers to the flowering time, which is later than most North American hawthorns.
According to James B. Phipps, this species may be the male parent of ''
Crataegus × lavalleei''.
References
External links
'' Pear Hawthorn, Crataegus calpodendron (Ehrh.)Medikus, Floyd County, Northwest Georgia, Southeastern United States''
calpodendron
Flora of Northern America
{{Crataegus-stub