⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-69118, with some changes.
This name is a synonym of Symphyotrichum laeve var. concinnum (Willd.) G.L.Nesom.
The record derives from TICA which reports it as a synonym (record B376FF27-924D-44D1-8296-E401E4DDE031) with original publication details: New York State Museum Bulletin 243-244: 15 1923.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:23603-2.