https://fsus.ncbg.unc.edu/main.php?pg=show-taxon-detail.php&lsid=urn:lsid:ncbg.unc.edu:taxon:{DE95DF34-B4F9-4798-8DB7-BC89ADA9305A}
Crataegus ×notha Sargent (pro sp.). Mongrel Hawthorn. Phen: Apr; Sep-Oct. Hab: Gravelly hills in oak woodlands. Dist: Endemic to Hempstead County, AR; no collections since 1921 suggest this entity may be extinct.
Origin/Endemic status: Endemic
Taxonomy Comments: Originally described as an assumed interserial hybrid of C. marshallii Eggleston and a member of series Molles, possibly the locally sympatric C. brachyphylla Sargent.
Synonymy: = Phipps, O’Kennon, & Lance (2003); = n/a – FNA9
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