| Classification | Asteraceae: Aster |
| Classification 1 | Asteraceae: Oreostemma |
| Classification 2 | Asteraceae: Aster |
| Complex Object | This is a complex collection object (4 items with 1 preparation) |
| Harvard University Herbaria Barcode(s) | 00003729 |
| Other Barcodes on Sheet | 00003730; 00872265; 00872266 |
| Type Status | Isolectotype, Type |
| Collector | F. V. Hayden |
| Collector number | 15 |
| Country | United States of America |
| State | Wyoming |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Wyoming |
| Locality | Yellowstone R.; Up. Falls, W.T. [Yellowstone River, Upper Falls, Wyoming Territory] |
| Date Collected | 1871-08-27 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/4ee0fa11-4110-4788-94da-754c3c16f3ce |
| Harvard University Herbaria Barcode | 00003729 |
| Herbarium | GH |
| Family | Asteraceae |
| Determination | Aster haydenii Porter |
| Determined by | A.C. [A. J. Cronquist] |
| Date Determined | 1947 |
| Annotation Text | Type collection |
| Family | Asteraceae |
| Determination | Aster alpigenus subsp. haydenii (Porter) Cronquist |
| Determined by | Cronquist, Arthur John |
| Date Determined | 1947 |
| Family | Asteraceae |
| Determination | Aster alpigenus subsp. haydenii (Porter) Cronquist |
| Determined by | Jones, Almut Gitter |
| Date Determined | 1984 |
| Family | Asteraceae |
| Determination | Oreostemma alpigenum var. haydenii (Porter) G. L. Nesom |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2017 |
| Determination Remarks | [is Current name] |
| Family | Asteraceae |
| Type Status | Isolectotype |
| Isolectotype of | Aster haydenii Porter |
| Verified by | Jones, Almut Gitter |
| Date Determined | 1984 |
| Determination Remarks | [is filed under name] |
| Annotation Text | The Lectotype is at PH! |
| Taxon Reference | (for Aster haydenii Porter) Prelim. Rep. U.S. Geol. Surv. Montana 1872. 485. |
| Family | Asteraceae |
| Type Status | Type |
| Type of | Aster haydenii Porter |
| Verified by | Boufford, David Edward |
| Date Determined | 1983 |
| Determination Remarks | [0] |
| Taxon Reference | (for Aster haydenii Porter) Prelim. Rep. U.S. Geol. Surv. Montana 1872. 485. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
