| Classification | Asteraceae: Aster |
| Classification 1 | Asteraceae: Dieteria |
| Classification 2 | Asteraceae: Machaeranthera |
| Harvard University Herbaria Barcode(s) | 00872248 |
| Type Status | Syntype |
| Collector | J. D. Hooker & A. Gray |
| Country | United States of America |
| State | Colorado |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Colorado |
| Locality | La Veta Pass, Col. |
| Date Collected | 1877 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/b4d8a722-c17a-44b6-a2dd-bc0b5d2ad80e |
| Harvard University Herbaria Barcode | 00872248 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Syntype |
| Syntype of | Aster pattersonii var. hallii A. Gray |
| Verified by | Kittredge, Walter Tobey |
| Date Determined | 2017 |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Aster pattersonii var. hallii A. Gray) Proc. Amer. Acad. Arts 1878. 13: 372. |
| Family | Asteraceae |
| Determination | Dieteria canescens var. glabra (A. Gray) D. R. Morgan & R. L. Hartman |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2017 |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Machaeranthera canescens var. glabra A. Gray |
| Determined by | Turner, Billie Lee |
| Date Determined | 1986 |
| Family | Asteraceae |
| Determination | Machaeranthera canescens var. viridis A. Gray |
| Determined by | [A. Gray (scripsit) W. T. Kittredge, 2017] |
| Annotation Text | Syn. Fl. N. Amer. |
| Family | Asteraceae |
| Determination | Aster pattersonii var. hallii A. Gray |
| Determined by | [A. Gray (scripsit) W. T. Kittredge, 2017] |
| Determination Remarks | [label name] |
| Annotation Text | = Hall's 285 p. parte |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
