⚠ Version 1 of The Plant List has been superseded.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 Sisymbrium watsonii in version 1.1 of The Plant List.
This name is a synonym of Thelypodiopsis vaseyi .
The record derives from Tropicos which reports it as a synonym (record 50124975
) with original publication details: Univ. Wyoming Publ. Sci., Bot. 1(1): 16 16 1922.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:237018-2
.