| Classification | Asteraceae: Aster | 
| Classification 1 | Asteraceae: Symphyotrichum | 
| Harvard University Herbaria Barcode(s) | 00002940 | 
| Type Status | Isotype | 
| Collector | A. E. Porsild & A. J. Breitung | 
| Collector number | 10703 | 
| Country | Canada | 
| State | Yukon Territory | 
| Geography | North America: North America (CA, US, MX) (Region): Canada: Yukon Territory | 
| Locality | Whitehorse: east of Lewes R. | 
| Date Collected | 1944-07-28 - 1944-07-29 | 
| Elevation | 640 - 732 m | 
| Verbatim Elevation | 2100-2400' [feet] | 
| Habitat | Sandy and shaly bluffs and hillsides; open aspen woods | 
| Container | Flora of Yukon Territory | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/13fa21b0-ff80-4283-807c-8d8c102e936d | 
| Harvard University Herbaria Barcode | 00002940 | 
| Herbarium | GH | 
| Previous ownership | Distributed by The National Herbarium of Canada | 
| Family | Asteraceae | 
| Type Status | Isotype | 
| Isotype of | Aster elegantulus A. E. Porsild | 
| Verified by | Boufford, David Edward | 
| Date Determined | 1982 | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Aster elegantulus A. E. Porsild) Canad. Field-Naturalist 1950. 64: 43. | 
| Family | Asteraceae | 
| Determination | Symphyotrichum falcatum (Lindley) G. L. Nesom | 
| Determined by | Kittredge, Walter Tobey | 
| Date Determined | 2017 | 
| Determination Remarks | [current name] | 
| Annotation Text | var. falcatum | 
| Family | Asteraceae | 
| Determination | Aster elegantulus A. E. Porsild | 
| Determined by | Jones, Almut Gitter | 
| Date Determined | 1984 | 
| Annotation Text | Isotype (as determined below) | 
| Family | Asteraceae | 
| Determination | Aster falcatus Lindley | 
| Determined by | Jones, Almut Gitter | 
| Date Determined | 1984 | 
| Annotation Text | ssp. falcatus | 
| Family | Asteraceae | 
| Determination | Aster ericoides var. commutatus (Torrey & A. Gray) B. Boivin | 
| Determined by | Boivin, Bernard | 
| Date Determined | 1979 | 
| Family | Asteraceae | 
| Determination | Aster elegantulus A. E. Porsild | 
| Determination Remarks | [label name] | 
| Annotation Text | Isotype n. sp. | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |