The Plant List — A working list for all plant species

H Crataegus williamsii Eggl. is a synonym of Crataegus douglasii Lindl.

This name is a synonym of Crataegus douglasii Lindl..

The record derives from RJP (data supplied on ) which reports it as a synonym (record 5202) with original publication details: ; 1909 641 1909.

Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:69188-2.

Earlier versions

This name record (from RJP) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Crataegus williamsii in version 1 of The Plant List.