The record derives from TICA
(data supplied on )
which reports it as a synonym (record
BC5CAD53-F9C1-4A91-9232-0745472916C4) with original publication details: Bull. Acad. Intern. Geogr. Bot. 12:241. 1903. 241 1903.
This name record (from TICA) 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 Vernonia sequinii in version 1 of The Plant List.