Crataegus crus-galli var. attenuata Farw.

, Rep. (Annual) Michigan Acad. Sci. 20: 181 (1918). BHL
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:68114-2
Publication
Report (Annual) of the Michigan Academy of Science, Arts, and Letters. East Lansing
Collation
20: 181
Family as entered in IPNI
Rosaceae

Links

Nomenclatural link
Crataegus attenuata Ashe, J. Elisha Mitchell Sci. Soc. 19, pt. 1: 30 (1903).