⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50050427, with some changes.
This name is a synonym of Symphyotrichum × longulum (E.Sheld.) G.L.Nesom.
The record derives from Tropicos which reports it as a synonym (record 50050427) with original publication details: Minnesota Bot. Stud. 1: 18, pl. 2 18 1894.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:181665-1.