found: Work cat: COSEWIC assessment and status report on the Annual saltmarsh aster, Symphyotrichum subulatum, in Canada, 2017:page 5 (Synonyms - Aster subulatus, Aster subulatus var. subulatus, Aster subulatus var. obtusifolius, Aster subulatus var. euroaster; "only northeastern North American synonyms are listed here"; Common names - Eastern annual saltmarsh aster, Annual saltmarsh American-aster, Bathurst Aster, Saltmarsh aster, small saltmarsh aster, Expressway aster; Family - Asteraceae, Order - Asterales, Class - Magnoliopsida, Division - Tracheophyta; "Annual saltmarsh aster was described by Michaux (1803) as Aster subulatus and the taxon has consistently been recognized as the species level since that time. The species' broad geographic range and highly variable morphology resulted in an extensive proliferation of taxa now considered synonyms (53 listed in Tropicos 2016)"); page 6 ("this report follows the recent taxonomic consensus described above in treating all Canadian occurrences of Annual saltmarsh aster as Symphyotrichum subulatum var. subulatum, and because this is the only variety in Canada the report treats the taxon as Symphyotrichum subulatum")
found: ITIS website, April 7, 2020:(Symphyotrichum subulatum; Synonyms - Aster subulatus, Aster subulatus var. euroauster; Common name - eastern annual saltmarsh aster; Genus - Symphyotrichum, Family - Asteraceae, Order - Asterales, Class - Magnoliopsida, Division - Tracheophyta, Kingdom - Plantae; Varieties also include Symphyotrichum subulatum var. subulatum which also has the common name eastern annual saltmarsh aster)
found: NatureServe Explorer website, April 7, 2020:(Symphyotrichum subulatum, Annual Saltmarsh Aster; other english common names - Eastern Annual Saltmarsh Aster, Seaside American-aster; Synonym - Symphyotrichum subulatum var. subulatum; Genus - Symphyotrichum, Family - Asteraceae, Order - Asterales, Class - Dicotyledoneae, Phylum - Anthophyta, Kingdom - Plantae)
found: PLANTS database, April 7, 2020:(Symphyotrichum subulatum, eastern annual saltmarsh aster; Genus - Symphyotrichum, Family - Asteraceae / Compositae, Order - Asterales, Class - Magnoliopsida, Division - Magnoliophyta, Kingdom - Plantae; Synonyms - Aster subulatus, Aster subulatus var. euroauster, Aster subulatus var. obtusifolius)