⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Crataegus rigida in version 1.1 of The Plant List.
This name is unresolved.
The record derives from Tropicos which does not establish this name either as an accepted name or as a synonym (record 50112962
) with original publication details: Crataegus Missouri 99-100 99 1908.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:68905-2
.
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