| Classification | Asteraceae: Aster |
| Classification 1 | Asteraceae: Symphyotrichum |
| Harvard University Herbaria Barcode(s) | 00055461 |
| Type Status | Syntype, Possible Syntype |
| Collector | J. T. Rothrock |
| Collector number | 789 |
| Country | United States of America |
| State | Arizona |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona |
| Locality | Black River flats, Ariz |
| Date Collected | 1874-10-** |
| Elevation | 1372 m |
| Verbatim Elevation | 4500 ft. |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/c450dc30-d4cb-4404-91ba-358578e8536f |
| Harvard University Herbaria Barcode | 00055461 |
| Herbarium | GH |
| Previous ownership | Ex Herb. George Thurber. |
| Family | Asteraceae |
| Type Status | Syntype |
| Syntype of | Aster hesperius A. Gray |
| Verified by | Semple, John Cameron |
| Date Determined | 1995-03-20 |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Aster hesperius A. Gray) Syn. Fl. N. Amer. 1884. 1(2): 192. |
| Family | Asteraceae |
| Type Status | Possible Syntype |
| Possible Syntype of | Aster hesperius A. Gray |
| Verified by | Bates, Vernon M. |
| Date Determined | 1983 |
| Taxon Reference | (for Aster hesperius A. Gray) Syn. Fl. N. Amer. 1884. 1(2): 192. |
| Family | Asteraceae |
| Determination | Symphyotrichum lanceolatum var. hesperium (A. Gray) G. L. Nesom |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2017 |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Aster lanceolatus subsp. hesperius (A. Gray) Semple & Chmielewski |
| Determined by | Semple, John Cameron |
| Date Determined | 1995-03-20 |
| Family | Asteraceae |
| Determination | Aster hesperius A. Gray |
| Determined by | Jones, Almut Gitter |
| Date Determined | 1981 |
| Family | Asteraceae |
| Determination | Aster coerulescens de Candolle |
| Determined by | Cronquist, Arthur John |
| Date Determined | 1940 |
| Annotation Text | var. typicus Cronq. ined. |
| Family | Asteraceae |
| Determination | Aster coerulescens de Candolle |
| Determined by | Wiegand, Karl McKay |
| Date Determined | 1930-01-** |
| Annotation Text | not typical as to panicle & bracts |
| Family | Asteraceae |
| Determination | Aster carneus var. subasper (Lindley ex Hooker) Torrey & A. Gray |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
